#253B9D#253B9D

#253B9D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.161 H 268.3°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#253B9D
RGB	rgb(37, 59, 157)
HSL	hsl(229, 62%, 38%)
HSV	hsv(229, 76%, 62%)
CMYK	cmyk(76.4%, 62.4%, 0%, 38.4%)
CIE-LAB	lab(29.30, 27.56, -55.70)
CIE-LCH	lch(29.30, 62.14, 296.33°)
OKLab	oklab(40.12% -0.0048 -0.1609)
OKLCH	oklch(40.12% 0.161 268.3)
XYZ	xyz(8.4106, 5.9546, 32.5979)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B9D #9D8725

analogous

#25779D #253B9D #4B259D

triadic

#253B9D #9D253B #3B9D25

tetradic

#253B9D #9D2577 #9D8725 #259D4B

square

#253B9D #9D2577 #9D8725 #259D4B

split-complementary

#253B9D #9D4B25 #779D25

monochromatic

#0E163A #19286B #253B9D #314ECE #6278DA

Accessibility & contrast

On white

9.58

#253B9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#253B9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B9D

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B9D	#FFFFFF	#000000	##FFFFFF
##253B9D	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA0

Deuteranopia (green-blind)

#00409B

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #253b9d;
/* rgb */ color: rgb(37, 59, 157);
/* oklch */ color: oklch(40.1% 0.161 268.3);

Tailwind

colors: {
  custom: {
    50: '#7370bb',
    500: '#253b9d',
    950: '#000000',
  },
}

SCSS

$custom: #253b9d;
$custom-light: #7370bb;
$custom-dark: #000000;

JSON

{
  "hex": "#253b9d",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 157
  },
  "hsl": {
    "h": 229,
    "s": 61.856,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40115,
    "c": 0.16102,
    "h": 268.3
  },
  "luminance": 0.05956
}

Semantic roles & 50–950 ramp

primary

#253B9D

secondary

#BFAE5E

accent

#C743E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #253B9D

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

Preview Lab → · Contrast checker → · Palette generator →