#253D80#253D80

#253D80 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.1% C 0.117 H 266.1°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#253D80
RGB	rgb(37, 61, 128)
HSL	hsl(224, 55%, 32%)
HSV	hsv(224, 71%, 50%)
CMYK	cmyk(71.1%, 52.3%, 0%, 49.8%)
CIE-LAB	lab(27.54, 14.95, -40.67)
CIE-LCH	lch(27.54, 43.34, 290.19°)
OKLab	oklab(38.07% -0.0079 -0.1168)
OKLCH	oklch(38.07% 0.117 266.1)
XYZ	xyz(6.3266, 5.2887, 21.1053)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D80 #806825

analogous

#256B80 #253D80 #3B2580

triadic

#253D80 #80253D #3D8025

tetradic

#253D80 #80256B #806825 #25803B

square

#253D80 #80256B #806825 #25803B

split-complementary

#253D80 #803B25 #6B8025

monochromatic

#0A1021 #172651 #253D80 #3354AF #5273CD

Accessibility & contrast

On white

10.21

#253D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#253D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D80

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D80	#FFFFFF	#000000	##FFFFFF
##253D80	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154582

Deuteranopia (green-blind)

#003D7F

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #253d80;
/* rgb */ color: rgb(37, 61, 128);
/* oklch */ color: oklch(38.1% 0.117 266.1);

Tailwind

colors: {
  custom: {
    50: '#6b72a5',
    500: '#253d80',
    950: '#000000',
  },
}

SCSS

$custom: #253d80;
$custom-light: #6b72a5;
$custom-dark: #000000;

JSON

{
  "hex": "#253d80",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 128
  },
  "hsl": {
    "h": 224.176,
    "s": 55.152,
    "l": 32.353
  },
  "oklch": {
    "l": 0.38072,
    "c": 0.11704,
    "h": 266.1
  },
  "luminance": 0.05289
}

Semantic roles & 50–950 ramp

primary

#253D80

secondary

#B19750

accent

#B749DE

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #253D80

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

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