#253B82#253B82

#253B82 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.8% C 0.123 H 267.3°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#253B82
RGB	rgb(37, 59, 130)
HSL	hsl(226, 56%, 33%)
HSV	hsv(226, 72%, 51%)
CMYK	cmyk(71.5%, 54.6%, 0%, 49%)
CIE-LAB	lab(27.11, 17.12, -42.62)
CIE-LCH	lch(27.11, 45.94, 291.89°)
OKLab	oklab(37.79% -0.0058 -0.1225)
OKLCH	oklch(37.79% 0.123 267.3)
XYZ	xyz(6.3548, 5.1323, 21.7705)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B82 #826C25

analogous

#256A82 #253B82 #3D2582

triadic

#253B82 #82253B #3B8225

tetradic

#253B82 #82256A #826C25 #25823D

square

#253B82 #82256A #826C25 #25823D

split-complementary

#253B82 #823D25 #6A8225

monochromatic

#0A1023 #172552 #253B82 #3351B2 #5370CE

Accessibility & contrast

On white

10.36

#253B82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#253B82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B82

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B82	#FFFFFF	#000000	##FFFFFF
##253B82	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A4485

Deuteranopia (green-blind)

#003C81

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #253b82;
/* rgb */ color: rgb(37, 59, 130);
/* oklch */ color: oklch(37.8% 0.123 267.3);

Tailwind

colors: {
  custom: {
    50: '#6c70a7',
    500: '#253b82',
    950: '#000000',
  },
}

SCSS

$custom: #253b82;
$custom-light: #6c70a7;
$custom-dark: #000000;

JSON

{
  "hex": "#253b82",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 130
  },
  "hsl": {
    "h": 225.806,
    "s": 55.689,
    "l": 32.745
  },
  "oklch": {
    "l": 0.3779,
    "c": 0.12268,
    "h": 267.3
  },
  "luminance": 0.05133
}

Semantic roles & 50–950 ramp

primary

#253B82

secondary

#B29B50

accent

#BB49DF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #253B82

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

Preview Lab → · Contrast checker → · Palette generator →