#253D91#253D91

#253D91 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.5% C 0.142 H 267.4°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#253D91
RGB	rgb(37, 61, 145)
HSL	hsl(227, 59%, 36%)
HSV	hsv(227, 74%, 57%)
CMYK	cmyk(74.5%, 57.9%, 0%, 43.1%)
CIE-LAB	lab(28.84, 21.59, -49.12)
CIE-LCH	lch(28.84, 53.65, 293.73°)
OKLab	oklab(39.46% -0.0065 -0.1416)
OKLCH	oklch(39.46% 0.142 267.4)
XYZ	xyz(7.5408, 5.7743, 27.4997)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D91 #917925

analogous

#257391 #253D91 #432591

triadic

#253D91 #91253D #3D9125

tetradic

#253D91 #912573 #917925 #259143

square

#253D91 #912573 #917925 #259143

split-complementary

#253D91 #914325 #739125

monochromatic

#0C142F #192860 #253D91 #3152C2 #5B76D5

Accessibility & contrast

On white

9.74

#253D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#253D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D91

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D91	#FFFFFF	#000000	##FFFFFF
##253D91	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#003F8F

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #253d91;
/* rgb */ color: rgb(37, 61, 145);
/* oklch */ color: oklch(39.5% 0.142 267.4);

Tailwind

colors: {
  custom: {
    50: '#6f72b2',
    500: '#253d91',
    950: '#000000',
  },
}

SCSS

$custom: #253d91;
$custom-light: #6f72b2;
$custom-dark: #000000;

JSON

{
  "hex": "#253d91",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 145
  },
  "hsl": {
    "h": 226.667,
    "s": 59.341,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39459,
    "c": 0.14176,
    "h": 267.4
  },
  "luminance": 0.05775
}

Semantic roles & 50–950 ramp

primary

#253D91

secondary

#BAA458

accent

#C045E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #253D91

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

Preview Lab → · Contrast checker → · Palette generator →