#253E81#253E81

#253E81 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.4% C 0.117 H 265.7°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#253E81
RGB	rgb(37, 62, 129)
HSL	hsl(224, 55%, 33%)
HSV	hsv(224, 71%, 51%)
CMYK	cmyk(71.3%, 51.9%, 0%, 49.4%)
CIE-LAB	lab(27.91, 14.65, -40.71)
CIE-LCH	lch(27.91, 43.27, 289.80°)
OKLab	oklab(38.37% -0.0087 -0.1169)
OKLCH	oklch(38.37% 0.117 265.7)
XYZ	xyz(6.4466, 5.4229, 21.4716)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253E81 #816825

analogous

#256C81 #253E81 #3A2581

triadic

#253E81 #81253E #3E8125

tetradic

#253E81 #81256C #816825 #25813A

square

#253E81 #81256C #816825 #25813A

split-complementary

#253E81 #813A25 #6C8125

monochromatic

#0A1022 #172751 #253E81 #3355B1 #5374CE

Accessibility & contrast

On white

10.07

#253E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#253E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253E81

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253E81	#FFFFFF	#000000	##FFFFFF
##253E81	1.00	10.07	2.08	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174683

Deuteranopia (green-blind)

#003E80

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #253e81;
/* rgb */ color: rgb(37, 62, 129);
/* oklch */ color: oklch(38.4% 0.117 265.7);

Tailwind

colors: {
  custom: {
    50: '#6c72a6',
    500: '#253e81',
    950: '#000000',
  },
}

SCSS

$custom: #253e81;
$custom-light: #6c72a6;
$custom-dark: #000000;

JSON

{
  "hex": "#253e81",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 129
  },
  "hsl": {
    "h": 223.696,
    "s": 55.422,
    "l": 32.549
  },
  "oklch": {
    "l": 0.38373,
    "c": 0.11719,
    "h": 265.7
  },
  "luminance": 0.05424
}

Semantic roles & 50–950 ramp

primary

#253E81

secondary

#B29750

accent

#B649DF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #253E81

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

Preview Lab → · Contrast checker → · Palette generator →