#253C6E#253C6E

#253C6E is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.5% C 0.091 H 263.9°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#253C6E
RGB	rgb(37, 60, 110)
HSL	hsl(221, 50%, 29%)
HSV	hsv(221, 66%, 43%)
CMYK	cmyk(66.4%, 45.5%, 0%, 56.9%)
CIE-LAB	lab(26.01, 8.63, -31.75)
CIE-LCH	lch(26.01, 32.91, 285.21°)
OKLab	oklab(36.51% -0.0097 -0.0905)
OKLCH	oklch(36.51% 0.091 263.9)
XYZ	xyz(5.1923, 4.7504, 15.3921)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C6E #6E5725

analogous

#25616E #253C6E #33256E

triadic

#253C6E #6E253C #3C6E25

tetradic

#253C6E #6E2561 #6E5725 #256E33

square

#253C6E #6E2561 #6E5725 #256E33

split-complementary

#253C6E #6E3325 #616E25

monochromatic

#080C17 #162340 #253C6E #34559C #4B71C2

Accessibility & contrast

On white

10.77

#253C6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#253C6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C6E

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C6E	#FFFFFF	#000000	##FFFFFF
##253C6E	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254170

Deuteranopia (green-blind)

#1A3A6D

Tritanopia (blue-blind)

#00474F

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #253c6e;
/* rgb */ color: rgb(37, 60, 110);
/* oklch */ color: oklch(36.5% 0.091 263.9);

Tailwind

colors: {
  custom: {
    50: '#687198',
    500: '#253c6e',
    950: '#000000',
  },
}

SCSS

$custom: #253c6e;
$custom-light: #687198;
$custom-dark: #000000;

JSON

{
  "hex": "#253c6e",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 110
  },
  "hsl": {
    "h": 221.096,
    "s": 49.66,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36506,
    "c": 0.09107,
    "h": 263.9
  },
  "luminance": 0.04751
}

Semantic roles & 50–950 ramp

primary

#253C6E

secondary

#A1874E

accent

#AE4FD9

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #253C6E

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

Preview Lab → · Contrast checker → · Palette generator →