#253E9A#253E9A

#253E9A is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.153 H 267.4°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#253E9A
RGB	rgb(37, 62, 154)
HSL	hsl(227, 61%, 37%)
HSV	hsv(227, 76%, 60%)
CMYK	cmyk(76%, 59.7%, 0%, 39.6%)
CIE-LAB	lab(29.84, 24.39, -52.99)
CIE-LCH	lch(29.84, 58.33, 294.72°)
OKLab	oklab(40.44% -0.007 -0.153)
OKLCH	oklch(40.44% 0.153 267.4)
XYZ	xyz(8.3163, 6.1708, 31.3184)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253E9A #9A8125

analogous

#25799A #253E9A #46259A

triadic

#253E9A #9A253E #3E9A25

tetradic

#253E9A #9A2579 #9A8125 #259A46

square

#253E9A #9A2579 #9A8125 #259A46

split-complementary

#253E9A #9A4625 #799A25

monochromatic

#0D1637 #192A69 #253E9A #3152CB #607AD9

Accessibility & contrast

On white

9.40

#253E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#253E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253E9A

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253E9A	#FFFFFF	#000000	##FFFFFF
##253E9A	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9D

Deuteranopia (green-blind)

#004198

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #253e9a;
/* rgb */ color: rgb(37, 62, 154);
/* oklch */ color: oklch(40.4% 0.153 267.4);

Tailwind

colors: {
  custom: {
    50: '#7272b9',
    500: '#253e9a',
    950: '#000000',
  },
}

SCSS

$custom: #253e9a;
$custom-light: #7272b9;
$custom-dark: #000000;

JSON

{
  "hex": "#253e9a",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 154
  },
  "hsl": {
    "h": 227.179,
    "s": 61.257,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40439,
    "c": 0.15313,
    "h": 267.4
  },
  "luminance": 0.06172
}

Semantic roles & 50–950 ramp

primary

#253E9A

secondary

#BEA95D

accent

#C243E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #253E9A

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

Preview Lab → · Contrast checker → · Palette generator →