#253E63#253E63

#253E63 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.3% C 0.072 H 258.0°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#253E63
RGB	rgb(37, 62, 99)
HSL	hsl(216, 46%, 27%)
HSV	hsv(216, 63%, 39%)
CMYK	cmyk(62.6%, 37.4%, 0%, 61.2%)
CIE-LAB	lab(25.98, 3.06, -24.74)
CIE-LCH	lch(25.98, 24.93, 277.06°)
OKLab	oklab(36.26% -0.0148 -0.07)
OKLCH	oklch(36.26% 0.072 258)
XYZ	xyz(4.7369, 4.7390, 12.4671)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253E63 #634A25

analogous

#255D63 #253E63 #2B2563

triadic

#253E63 #63253E #3E6325

tetradic

#253E63 #63255D #634A25 #25632B

square

#253E63 #63255D #634A25 #25632B

split-complementary

#253E63 #632B25 #5D6325

monochromatic

#080E16 #142236 #253E63 #365A90 #4876BB

Accessibility & contrast

On white

10.78

#253E63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#253E63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253E63

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253E63	#FFFFFF	#000000	##FFFFFF
##253E63	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4165

Deuteranopia (green-blind)

#263B62

Tritanopia (blue-blind)

#00464B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #253e63;
/* rgb */ color: rgb(37, 62, 99);
/* oklch */ color: oklch(36.3% 0.072 258.0);

Tailwind

colors: {
  custom: {
    50: '#65738f',
    500: '#253e63',
    950: '#000000',
  },
}

SCSS

$custom: #253e63;
$custom-light: #65738f;
$custom-dark: #000000;

JSON

{
  "hex": "#253e63",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 99
  },
  "hsl": {
    "h": 215.806,
    "s": 45.588,
    "l": 26.667
  },
  "oklch": {
    "l": 0.36264,
    "c": 0.07155,
    "h": 258
  },
  "luminance": 0.04739
}

Semantic roles & 50–950 ramp

primary

#253E63

secondary

#96794E

accent

#A153D5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06080C

muted

#7A7B7D

Preview Lab

Preview with #253E63

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

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