#253E8F#253E8F

#253E8F is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.5% C 0.138 H 266.9°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#253E8F
RGB	rgb(37, 62, 143)
HSL	hsl(226, 59%, 35%)
HSV	hsv(226, 74%, 56%)
CMYK	cmyk(74.1%, 56.6%, 0%, 43.9%)
CIE-LAB	lab(28.96, 20.13, -47.69)
CIE-LCH	lch(28.96, 51.76, 292.88°)
OKLab	oklab(39.5% -0.0074 -0.1374)
OKLCH	oklch(39.5% 0.138 266.9)
XYZ	xyz(7.4418, 5.8210, 26.7126)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253E8F #8F7625

analogous

#25738F #253E8F #41258F

triadic

#253E8F #8F253E #3E8F25

tetradic

#253E8F #8F2573 #8F7625 #258F41

square

#253E8F #8F2573 #8F7625 #258F41

split-complementary

#253E8F #8F4125 #738F25

monochromatic

#0C142E #18295E #253E8F #3253C0 #5A77D4

Accessibility & contrast

On white

9.70

#253E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#253E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253E8F

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253E8F	#FFFFFF	#000000	##FFFFFF
##253E8F	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004992

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #253e8f;
/* rgb */ color: rgb(37, 62, 143);
/* oklch */ color: oklch(39.5% 0.138 266.9);

Tailwind

colors: {
  custom: {
    50: '#6f72b0',
    500: '#253e8f',
    950: '#000000',
  },
}

SCSS

$custom: #253e8f;
$custom-light: #6f72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#253e8f",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 143
  },
  "hsl": {
    "h": 225.849,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39499,
    "c": 0.1376,
    "h": 266.9
  },
  "luminance": 0.05822
}

Semantic roles & 50–950 ramp

primary

#253E8F

secondary

#B9A257

accent

#BD46E2

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #253E8F

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

Preview Lab → · Contrast checker → · Palette generator →