Tailwind CSS v4 default palette
Tailwind red-700: #C10007
In Tailwind CSS v4, red-700 is defined as --color-red-700: oklch(50.5% 0.213 27.518), which is #C10007 in hex and rgb(193, 0, 7): a medium-dark, vivid red. In Tailwind v3, red-700 was #B91C1C.
In OKLCH, red-700 has a lightness of 50.5%, chroma 0.213 and hue 27.5°.
This OKLCH value lies outside sRGB. The hex #C10007 is the sRGB fallback from the CSS Color 4 gamut mapping algorithm; on Display P3 screens browsers show a more saturated color, close to color(display-p3 0.6927 0.1162 0.1047).
In v3, red-700 was #B91C1C. The v4 value is ΔE OK 2.3 away; v4 is more saturated.
Tailwind red is the default choice for errors and destructive actions; the 600 and 700 shades are the usual picks for text and buttons on white.
Color codes for red-700
| Tailwind v4 token | --color-red-700 |
|---|---|
| OKLCH (source value) | oklch(50.5% 0.213 27.518) |
| HEX | #C10007 |
| RGB | rgb(193, 0, 7) |
| HSL | hsl(358, 100%, 38%) |
| HWB | hwb(358 0% 24%) |
| CMYK (naive, no ICC profile) | cmyk(0%, 100%, 96%, 24%) |
| Decimal | 12,648,455 |
| Display P3 | color(display-p3 0.6927 0.1162 0.1047) |
| Tailwind v3 hex | #B91C1C |
| Utility classes | bg-red-700, text-red-700, border-red-700 |
Tailwind red scale
Contrast and accessibility
On red-700, white text has a contrast ratio of 6.42:1 and passes AA for normal text; black text reaches 3.27:1.
WCAG 2.2 contrast ratios (success criteria 1.4.3 and 1.4.6: AA needs 4.5:1 for normal text and 3:1 for large text, AAA needs 7:1 and 4.5:1). APCA Lc is the lightness contrast from the APCA-W3 0.0.98G model proposed for WCAG 3; a higher absolute value is more readable, and Lc 75 is its suggested minimum for body text.
| Pair | Ratio | AA | AA large | AAA | AAA large | APCA Lc |
|---|---|---|---|---|---|---|
| Black text on red-700 | 3.27:1 | Fail | Pass | Fail | Fail | 25.0 |
| White text on red-700 | 6.42:1 | Pass | Pass | Fail | Pass | −84.3 |
| Red-700 text on white | 6.42:1 | Pass | Pass | Fail | Pass | 79.1 |
| Red-700 text on black | 3.27:1 | Fail | Pass | Fail | Fail | −22.7 |
Tints and shades
Each step mixes var(--color-red-700) with white (tints) or black (shades) in gamma-encoded sRGB, the same result as color-mix(in srgb, var(--color-red-700), white 25%) in CSS.
Tints (mixed with white)
- 5%
#c40d13 - 15%
#ca262c - 25%
#d14045 - 35%
#d7595e - 45%
#dd7377 - 55%
#e38c8f - 65%
#e9a6a8 - 75%
#f0bfc1 - 85%
#f6d9da - 95%
#fcf2f3
Shades (mixed with black)
- 5%
#b70007 - 15%
#a40006 - 25%
#910005 - 35%
#7d0005 - 45%
#6a0004 - 55%
#570003 - 65%
#440002 - 75%
#300002 - 85%
#1d0001 - 95%
#0a0000
Color harmonies
Rotating the hue in OKLCH while keeping lightness and chroma, red-700's complementary color is #007484 (close to teal), its analogous colors are #B80065 and #9F4900, and its triadic partners are #007E14 and #3152DC. For text on top, white gives the higher contrast.
| Harmony | Rotation | Color |
|---|---|---|
| Complementary | +180° | #007484 |
| Analogous | −30°, +30° | #b80065#9f4900 |
| Triadic | +120°, +240° | #007e14#3152dc |
| Split-complementary | +150°, +210° | #007964#006da8 |
Computed in OKLCH: the hue is rotated by 180° (complementary), ±30° (analogous), ±120° (triadic) and 180° ±30° (split-complementary) while lightness and chroma stay fixed. Results that fall outside sRGB are brought back with the CSS Color 4 gamut mapping algorithm. Because this uses OKLCH, the values differ from tools that rotate hue in HSL, but every color keeps the same perceived lightness.
Warm or cool?
Tailwind red-700 is a warm color: its hue is 358° on the HSL wheel, in the red, orange and yellow range (0° to about 70°, plus reds above 330°) that is conventionally called warm.
Nearest named and Tailwind colors
Distance is ΔE OK, the Euclidean distance in OKLab multiplied by 100. Values under about 2 are hard to tell apart side by side.
Code snippets
<div class="bg-red-700 text-white">...</div>
<p class="text-red-700 border-red-700">...</p>.element {
color: var(--color-red-700);
background-color: oklch(50.5% 0.213 27.518);
border-color: #c10007;
outline-color: rgb(193 0 7);
}import SwiftUI
extension Color {
static let red700 = Color(red: 0.757, green: 0.000, blue: 0.027)
}import androidx.compose.ui.graphics.Color
val Red700 = Color(0xFFC10007)import 'package:flutter/material.dart';
const red700 = Color(0xFFC10007);<!-- res/values/colors.xml -->
<color name="red_700">#C10007</color>Frequently asked questions
- What is the hex code for Tailwind red-700?
- In Tailwind CSS v4, red-700 is oklch(50.5% 0.213 27.518), which converts to #C10007 (rgb(193, 0, 7)) in sRGB after gamut mapping, because the OKLCH value is outside sRGB. In Tailwind v3 the same name was #B91C1C.
- What is the difference between red-700 in Tailwind v3 and v4?
- v3 used the hex #B91C1C; v4 redefined the palette in OKLCH as oklch(50.5% 0.213 27.518). In v3, red-700 was #B91C1C. The v4 value is ΔE OK 2.3 away; v4 is more saturated.
- How do I use red-700 in plain CSS?
- Tailwind v4 defines every palette color as a theme variable, so in CSS you write var(--color-red-700). By default Tailwind only emits the variables your project uses; @theme static emits all of them.
- Can you use white text on red-700?
- White text on red-700 has a contrast ratio of 6.42:1, which passes AA for normal text but not AAA under WCAG 2.2. Black text reaches 3.27:1 and passes AA only for large text (24 px, or 18.66 px bold, and up). In APCA terms that is Lc −84.3 for white and Lc 25.0 for black.
- Which CSS named color is closest to red-700?
- The closest is firebrick (#B22222) at ΔE OK 3.4, followed by brown and crimson.
Last reviewed by Arielton Oberek.