#253E6F#253E6F

#253E6F is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.090 H 262.5°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#253E6F
RGB	rgb(37, 62, 111)
HSL	hsl(220, 50%, 29%)
HSV	hsv(220, 67%, 44%)
CMYK	cmyk(66.7%, 44.1%, 0%, 56.5%)
CIE-LAB	lab(26.69, 7.64, -31.30)
CIE-LCH	lch(26.69, 32.22, 283.71°)
OKLab	oklab(37.05% -0.0118 -0.0892)
OKLCH	oklch(37.05% 0.09 262.5)
XYZ	xyz(5.3538, 4.9858, 15.7161)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253E6F #6F5625

analogous

#25636F #253E6F #31256F

triadic

#253E6F #6F253E #3E6F25

tetradic

#253E6F #6F2563 #6F5625 #256F31

square

#253E6F #6F2563 #6F5625 #256F31

split-complementary

#253E6F #6F3125 #636F25

monochromatic

#080D17 #162441 #253E6F #34589D #4B74C3

Accessibility & contrast

On white

10.51

#253E6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#253E6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253E6F

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253E6F	#FFFFFF	#000000	##FFFFFF
##253E6F	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284371

Deuteranopia (green-blind)

#1D3C6E

Tritanopia (blue-blind)

#004951

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #253e6f;
/* rgb */ color: rgb(37, 62, 111);
/* oklch */ color: oklch(37.1% 0.090 262.5);

Tailwind

colors: {
  custom: {
    50: '#687298',
    500: '#253e6f',
    950: '#000000',
  },
}

SCSS

$custom: #253e6f;
$custom-light: #687298;
$custom-dark: #000000;

JSON

{
  "hex": "#253e6f",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 111
  },
  "hsl": {
    "h": 219.73,
    "s": 50,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37053,
    "c": 0.08998,
    "h": 262.5
  },
  "luminance": 0.04986
}

Semantic roles & 50–950 ramp

primary

#253E6F

secondary

#A2864E

accent

#AA4EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #253E6F

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

Preview Lab → · Contrast checker → · Palette generator →