#253A8D#253A8D

#253A8D is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.140 H 268.3°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#253A8D
RGB	rgb(37, 58, 141)
HSL	hsl(228, 58%, 35%)
HSV	hsv(228, 74%, 55%)
CMYK	cmyk(73.8%, 58.9%, 0%, 44.7%)
CIE-LAB	lab(27.69, 22.09, -48.52)
CIE-LCH	lch(27.69, 53.31, 294.48°)
OKLab	oklab(38.5% -0.0042 -0.1399)
OKLCH	oklch(38.5% 0.14 268.3)
XYZ	xyz(7.0821, 5.3418, 25.8520)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253A8D #8D7825

analogous

#256E8D #253A8D #44258D

triadic

#253A8D #8D253A #3A8D25

tetradic

#253A8D #8D256E #8D7825 #258D44

square

#253A8D #8D256E #8D7825 #258D44

split-complementary

#253A8D #8D4425 #6E8D25

monochromatic

#0C122C #18265D #253A8D #324EBD #5972D3

Accessibility & contrast

On white

10.15

#253A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#253A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253A8D

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253A8D	#FFFFFF	#000000	##FFFFFF
##253A8D	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004690

Deuteranopia (green-blind)

#003D8B

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #253a8d;
/* rgb */ color: rgb(37, 58, 141);
/* oklch */ color: oklch(38.5% 0.140 268.3);

Tailwind

colors: {
  custom: {
    50: '#6f6faf',
    500: '#253a8d',
    950: '#000000',
  },
}

SCSS

$custom: #253a8d;
$custom-light: #6f6faf;
$custom-dark: #000000;

JSON

{
  "hex": "#253a8d",
  "rgb": {
    "r": 37,
    "g": 58,
    "b": 141
  },
  "hsl": {
    "h": 227.885,
    "s": 58.427,
    "l": 34.902
  },
  "oklch": {
    "l": 0.38497,
    "c": 0.13996,
    "h": 268.3
  },
  "luminance": 0.05343
}

Semantic roles & 50–950 ramp

primary

#253A8D

secondary

#B8A456

accent

#C246E2

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #253A8D

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

Preview Lab → · Contrast checker → · Palette generator →