HexeesDigital color, made useful.
Back to catalog
Color reference#1D4ED8Tailwind Blue 700

Color reference

Tailwind Blue 700

RGB
rgb(29 78 216)
HSL
hsl(224 76% 48%)
HWB
hwb(224 11% 15%)
Color family
Blue
Recommended foreground
#FFFFFF

Calculated profile

What the numbers say

At 224° hue, Tailwind Blue 700 is a high-saturation, mid-lightness, cool-hue sRGB color. Its relative luminance is 10.67%. For text on this background, #FFFFFF produces the stronger contrast at 6.70:1.

HSL lightness
48%
HSL saturation
76%
Relative luminance
10.67%
Hue group
cool-hue

02

Copy-ready color formats

Equivalent sRGB notations calculated from the same six-digit HEX value.

03

Text contrast against this color

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

White text6.70:1

Aa

AA normal text
Pass
AA large text
Pass
AAA normal text
Fail
AAA large text
Pass
Black text3.13:1

Aa

AA normal text
Fail
AA large text
Pass
AAA normal text
Fail
AAA large text
Fail

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-blue-700: #1D4ED8;
--color-tailwind-blue-700-rgb: 29 78 216;
--color-tailwind-blue-700-hsl: 224 76% 48%;
color: #FFFFFF;
background-color: var(--color-tailwind-blue-700);

Community review

Suggest a correction

Correction for Tailwind Blue 700#1D4ED8

Found an inaccurate name, explanation, source, or accessibility detail? Send a concise correction for editorial review.

20–2,000 characters. Plain text only.

Your email is stored only with this proposal so an editor can clarify the correction. It is never shown publicly.

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

A practical reference for digital color.

How to use colors© 2026 Hexees · hexees.com