#253B74#253B74

#253B74 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.102 H 265.7°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#253B74
RGB	rgb(37, 59, 116)
HSL	hsl(223, 52%, 30%)
HSV	hsv(223, 68%, 45%)
CMYK	cmyk(68.1%, 49.1%, 0%, 54.5%)
CIE-LAB	lab(26.10, 11.66, -35.43)
CIE-LCH	lch(26.10, 37.29, 288.22°)
OKLab	oklab(36.71% -0.0075 -0.1014)
OKLCH	oklch(36.71% 0.102 265.7)
XYZ	xyz(5.4782, 4.7817, 17.1539)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B74 #745E25

analogous

#256374 #253B74 #362574

triadic

#253B74 #74253B #3B7425

tetradic

#253B74 #742563 #745E25 #257436

square

#253B74 #742563 #745E25 #257436

split-complementary

#253B74 #743625 #637425

monochromatic

#070C17 #162346 #253B74 #3453A2 #4D6FC6

Accessibility & contrast

On white

10.73

#253B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#253B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B74

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B74	#FFFFFF	#000000	##FFFFFF
##253B74	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4276

Deuteranopia (green-blind)

#0F3A73

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #253b74;
/* rgb */ color: rgb(37, 59, 116);
/* oklch */ color: oklch(36.7% 0.102 265.7);

Tailwind

colors: {
  custom: {
    50: '#69709c',
    500: '#253b74',
    950: '#000000',
  },
}

SCSS

$custom: #253b74;
$custom-light: #69709c;
$custom-dark: #000000;

JSON

{
  "hex": "#253b74",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 116
  },
  "hsl": {
    "h": 223.291,
    "s": 51.634,
    "l": 30
  },
  "oklch": {
    "l": 0.36705,
    "c": 0.10164,
    "h": 265.7
  },
  "luminance": 0.04782
}

Semantic roles & 50–950 ramp

primary

#253B74

secondary

#A78E4E

accent

#B34DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #253B74

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

Preview Lab → · Contrast checker → · Palette generator →