#253F9D#253F9D

#253F9D is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.9% C 0.156 H 267.2°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#253F9D
RGB	rgb(37, 63, 157)
HSL	hsl(227, 62%, 38%)
HSV	hsv(227, 76%, 62%)
CMYK	cmyk(76.4%, 59.9%, 0%, 38.4%)
CIE-LAB	lab(30.36, 24.87, -53.97)
CIE-LCH	lch(30.36, 59.42, 294.74°)
OKLab	oklab(40.9% -0.0076 -0.1558)
OKLCH	oklch(40.9% 0.156 267.2)
XYZ	xyz(8.6241, 6.3817, 32.6690)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F9D #9D8325

analogous

#257B9D #253F9D #47259D

triadic

#253F9D #9D253F #3F9D25

tetradic

#253F9D #9D257B #9D8325 #259D47

square

#253F9D #9D257B #9D8325 #259D47

split-complementary

#253F9D #9D4725 #7B9D25

monochromatic

#0E173A #192B6B #253F9D #3153CE #627CDA

Accessibility & contrast

On white

9.22

#253F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#253F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F9D

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F9D	#FFFFFF	#000000	##FFFFFF
##253F9D	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA0

Deuteranopia (green-blind)

#00429B

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #253f9d;
/* rgb */ color: rgb(37, 63, 157);
/* oklch */ color: oklch(40.9% 0.156 267.2);

Tailwind

colors: {
  custom: {
    50: '#7273bb',
    500: '#253f9d',
    950: '#000000',
  },
}

SCSS

$custom: #253f9d;
$custom-light: #7273bb;
$custom-dark: #000000;

JSON

{
  "hex": "#253f9d",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 157
  },
  "hsl": {
    "h": 227,
    "s": 61.856,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40901,
    "c": 0.15602,
    "h": 267.2
  },
  "luminance": 0.06383
}

Semantic roles & 50–950 ramp

primary

#253F9D

secondary

#BFAA5E

accent

#C243E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #253F9D

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

Preview Lab → · Contrast checker → · Palette generator →