HexeesDigital color, made useful.

Color reference#B91C1CTailwind Red 700

Color reference

Tailwind Red 700

Color family
Red
Recommended foreground
#FFFFFF

Calculated profile

What the numbers say

At 0° hue, Tailwind Red 700 is a high-saturation, mid-lightness, warm-hue sRGB color. Its relative luminance is 11.23%. For text on this background, #FFFFFF produces the stronger contrast at 6.47:1.

HSL lightness
42%
HSL saturation
74%
Relative luminance
11.23%
Hue group
warm-hue

02

Copy-ready color formats

Equivalent CSS notations calculated from the same six-digit sRGB value, including perceptual OKLCH.

03

Text contrast against this color

Ratios use WCAG relative luminance. Passing a ratio does not by itself certify an interface.

White text6.47:1
AA normal text
Pass
AA large text
Pass
AAA normal text
Fail
AAA large text
Pass
Black text3.25:1
AA normal text
Fail
AA large text
Pass
AAA normal text
Fail
AAA large text
Fail
Continue in the contrast labCheck #B91C1C against another colorOpen the full WCAG pair checker with this color and its strongest black-or-white foreground already filled in.

04

Calculated tints and shades

Tints mix the color with white; shades mix it with black in sRGB.

Tints

Shades

05

Hue-wheel relationships

These colors keep the original HSL saturation and lightness while rotating hue. They are mathematical starting points, not automatic design recommendations.

06

Opacity variants

Eight-digit HEX and modern rgb() alpha syntax for the same opacity.

20%
40%
60%
80%

07

CSS starter

A small custom-property block using the calculated foreground with the stronger black-or-white contrast.

--color-tailwind-red-700: #B91C1C;
--color-tailwind-red-700-rgb: 185 28 28;
--color-tailwind-red-700-hsl: 0 74% 42%;
--color-tailwind-red-700-oklch: oklch(50.5% 0.1905 27.52);
color: #FFFFFF;
background-color: var(--color-tailwind-red-700);

Related catalog colors

Explore indexable colors selected by family, shared source, and weighted sRGB distance.
RedMaterial Red 900#B71C1C Open color RedFire Brick#B22222 Open color RedMaterial Red 800#C62828 Open color RedOpen Color Red 9#C92A2A Open color RedBrown#A52A2A Open color RedMaterial Deep Orange 900#BF360C Open color RedMaterial Red 700#D32F2F Open color RedCrimson#DC143C Open color RedMaterial Deep Orange A700#DD2C00 Open color

Community review

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08 / Verification

Where the values come from

The color name and HEX value are checked against the cited standard. RGB, HSL, HWB, luminance, and contrast are then calculated from that HEX value using published formulas.

Source for the name and HEX
Tailwind CSS default color palette
License
MIT License
Version
Tailwind CSS 3.4.17
Continue with the complete versioned collectionExplore Tailwind colors

Continue with a method

Use these reviewed guides to move from a single value to accessible, reproducible interface decisions.
9 min read Choosing link colors that remain distinguishableRead guide → 10 min read Button colors: text, fill, border, hover, and focusRead guide → 12 min read How to choose a readable text color for any backgroundRead guide →