#253B99#253B99

#253B99 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.8% C 0.156 H 268.2°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#253B99
RGB	rgb(37, 59, 153)
HSL	hsl(229, 61%, 37%)
HSV	hsv(229, 76%, 60%)
CMYK	cmyk(75.8%, 61.4%, 0%, 40%)
CIE-LAB	lab(28.95, 26.03, -53.82)
CIE-LCH	lch(28.95, 59.79, 295.81°)
OKLab	oklab(39.75% -0.0048 -0.1554)
OKLCH	oklch(39.75% 0.156 268.2)
XYZ	xyz(8.0747, 5.8203, 30.8287)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B99 #998325

analogous

#257599 #253B99 #492599

triadic

#253B99 #99253B #3B9925

tetradic

#253B99 #992575 #998325 #259949

square

#253B99 #992575 #998325 #259949

split-complementary

#253B99 #994925 #759925

monochromatic

#0D1536 #192868 #253B99 #314ECA #6077D9

Accessibility & contrast

On white

9.70

#253B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#253B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B99

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B99	#FFFFFF	#000000	##FFFFFF
##253B99	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9C

Deuteranopia (green-blind)

#003F97

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #253b99;
/* rgb */ color: rgb(37, 59, 153);
/* oklch */ color: oklch(39.8% 0.156 268.2);

Tailwind

colors: {
  custom: {
    50: '#7270b8',
    500: '#253b99',
    950: '#000000',
  },
}

SCSS

$custom: #253b99;
$custom-light: #7270b8;
$custom-dark: #000000;

JSON

{
  "hex": "#253b99",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 153
  },
  "hsl": {
    "h": 228.621,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39754,
    "c": 0.15552,
    "h": 268.2
  },
  "luminance": 0.05821
}

Semantic roles & 50–950 ramp

primary

#253B99

secondary

#BEAB5C

accent

#C644E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #253B99

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

Preview Lab → · Contrast checker → · Palette generator →