#253A71#253A71

#253A71 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.3% C 0.098 H 266.0°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#253A71
RGB	rgb(37, 58, 113)
HSL	hsl(223, 51%, 29%)
HSV	hsv(223, 67%, 44%)
CMYK	cmyk(67.3%, 48.7%, 0%, 55.7%)
CIE-LAB	lab(25.60, 11.19, -34.33)
CIE-LCH	lch(25.60, 36.11, 288.05°)
OKLab	oklab(36.25% -0.0069 -0.0982)
OKLCH	oklch(36.25% 0.098 266)
XYZ	xyz(5.2556, 4.6112, 16.2327)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253A71 #715C25

analogous

#256071 #253A71 #362571

triadic

#253A71 #71253A #3A7125

tetradic

#253A71 #712560 #715C25 #257136

square

#253A71 #712560 #715C25 #257136

split-complementary

#253A71 #713625 #607125

monochromatic

#080C17 #162243 #253A71 #34529F #4C6DC4

Accessibility & contrast

On white

10.92

#253A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#253A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253A71

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253A71	#FFFFFF	#000000	##FFFFFF
##253A71	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4073

Deuteranopia (green-blind)

#113970

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #253a71;
/* rgb */ color: rgb(37, 58, 113);
/* oklch */ color: oklch(36.3% 0.098 266.0);

Tailwind

colors: {
  custom: {
    50: '#686f9a',
    500: '#253a71',
    950: '#000000',
  },
}

SCSS

$custom: #253a71;
$custom-light: #686f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#253a71",
  "rgb": {
    "r": 37,
    "g": 58,
    "b": 113
  },
  "hsl": {
    "h": 223.421,
    "s": 50.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36252,
    "c": 0.09841,
    "h": 266
  },
  "luminance": 0.04612
}

Semantic roles & 50–950 ramp

primary

#253A71

secondary

#A48C4E

accent

#B34EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #253A71

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

Preview Lab → · Contrast checker → · Palette generator →