#253C66#253C66

#253C66 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.0% C 0.079 H 261.6°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#253C66
RGB	rgb(37, 60, 102)
HSL	hsl(219, 47%, 27%)
HSV	hsv(219, 64%, 40%)
CMYK	cmyk(63.7%, 41.2%, 0%, 60%)
CIE-LAB	lab(25.51, 5.57, -27.41)
CIE-LCH	lch(25.51, 27.97, 281.48°)
OKLab	oklab(35.96% -0.0115 -0.0778)
OKLCH	oklch(35.96% 0.079 261.6)
XYZ	xyz(4.7762, 4.5839, 13.2009)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C66 #664F25

analogous

#255D66 #253C66 #2E2566

triadic

#253C66 #66253C #3C6625

tetradic

#253C66 #66255D #664F25 #25662E

square

#253C66 #66255D #664F25 #25662E

split-complementary

#253C66 #662E25 #5D6625

monochromatic

#080D16 #152239 #253C66 #355693 #4972BD

Accessibility & contrast

On white

10.96

#253C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#253C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C66

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C66	#FFFFFF	#000000	##FFFFFF
##253C66	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4068

Deuteranopia (green-blind)

#213A65

Tritanopia (blue-blind)

#00454C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #253c66;
/* rgb */ color: rgb(37, 60, 102);
/* oklch */ color: oklch(36.0% 0.079 261.6);

Tailwind

colors: {
  custom: {
    50: '#667192',
    500: '#253c66',
    950: '#000000',
  },
}

SCSS

$custom: #253c66;
$custom-light: #667192;
$custom-dark: #000000;

JSON

{
  "hex": "#253c66",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 102
  },
  "hsl": {
    "h": 218.769,
    "s": 46.763,
    "l": 27.255
  },
  "oklch": {
    "l": 0.35961,
    "c": 0.07867,
    "h": 261.6
  },
  "luminance": 0.04584
}

Semantic roles & 50–950 ramp

primary

#253C66

secondary

#997E4E

accent

#A751D6

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #253C66

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

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