#253D88#253D88

#253D88 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.7% C 0.129 H 266.8°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#253D88
RGB	rgb(37, 61, 136)
HSL	hsl(225, 57%, 34%)
HSV	hsv(225, 73%, 53%)
CMYK	cmyk(72.8%, 55.1%, 0%, 46.7%)
CIE-LAB	lab(28.13, 18.08, -44.70)
CIE-LCH	lch(28.13, 48.22, 292.03°)
OKLab	oklab(38.71% -0.0071 -0.1286)
OKLCH	oklch(38.71% 0.129 266.8)
XYZ	xyz(6.8741, 5.5077, 23.9886)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D88 #887025

analogous

#256F88 #253D88 #3F2588

triadic

#253D88 #88253D #3D8825

tetradic

#253D88 #88256F #887025 #25883F

square

#253D88 #88256F #887025 #25883F

split-complementary

#253D88 #883F25 #6F8825

monochromatic

#0B1228 #182758 #253D88 #3253B8 #5674D1

Accessibility & contrast

On white

9.99

#253D88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#253D88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D88

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D88	#FFFFFF	#000000	##FFFFFF
##253D88	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05478B

Deuteranopia (green-blind)

#003E86

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #253d88;
/* rgb */ color: rgb(37, 61, 136);
/* oklch */ color: oklch(38.7% 0.129 266.8);

Tailwind

colors: {
  custom: {
    50: '#6d72ab',
    500: '#253d88',
    950: '#000000',
  },
}

SCSS

$custom: #253d88;
$custom-light: #6d72ab;
$custom-dark: #000000;

JSON

{
  "hex": "#253d88",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 136
  },
  "hsl": {
    "h": 225.455,
    "s": 57.225,
    "l": 33.922
  },
  "oklch": {
    "l": 0.3871,
    "c": 0.12882,
    "h": 266.8
  },
  "luminance": 0.05508
}

Semantic roles & 50–950 ramp

primary

#253D88

secondary

#B69E53

accent

#BB47E0

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #253D88

Body copy rendered with the generated semantic roles for this colour.

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