#253D71#253D71

#253D71 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.0% C 0.094 H 263.8°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#253D71
RGB	rgb(37, 61, 113)
HSL	hsl(221, 51%, 29%)
HSV	hsv(221, 67%, 44%)
CMYK	cmyk(67.3%, 46%, 0%, 55.7%)
CIE-LAB	lab(26.51, 9.10, -32.86)
CIE-LCH	lch(26.51, 34.10, 285.48°)
OKLab	oklab(36.96% -0.0102 -0.0938)
OKLCH	oklch(36.96% 0.094 263.8)
XYZ	xyz(5.4113, 4.9226, 16.2846)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253D71 #715925

analogous

#256371 #253D71 #332571

triadic

#253D71 #71253D #3D7125

tetradic

#253D71 #712563 #715925 #257133

square

#253D71 #712563 #715925 #257133

split-complementary

#253D71 #713325 #637125

monochromatic

#080C17 #162443 #253D71 #34569F #4C72C4

Accessibility & contrast

On white

10.58

#253D71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#253D71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253D71

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253D71	#FFFFFF	#000000	##FFFFFF
##253D71	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254273

Deuteranopia (green-blind)

#183B70

Tritanopia (blue-blind)

#004951

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #253d71;
/* rgb */ color: rgb(37, 61, 113);
/* oklch */ color: oklch(37.0% 0.094 263.8);

Tailwind

colors: {
  custom: {
    50: '#68729a',
    500: '#253d71',
    950: '#000000',
  },
}

SCSS

$custom: #253d71;
$custom-light: #68729a;
$custom-dark: #000000;

JSON

{
  "hex": "#253d71",
  "rgb": {
    "r": 37,
    "g": 61,
    "b": 113
  },
  "hsl": {
    "h": 221.053,
    "s": 50.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36955,
    "c": 0.09436,
    "h": 263.8
  },
  "luminance": 0.04923
}

Semantic roles & 50–950 ramp

primary

#253D71

secondary

#A4894E

accent

#AE4EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #253D71

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

Preview Lab → · Contrast checker → · Palette generator →