#253C99#253C99

#253C99 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.154 H 267.9°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#253C99
RGB	rgb(37, 60, 153)
HSL	hsl(228, 61%, 37%)
HSV	hsv(228, 76%, 60%)
CMYK	cmyk(75.8%, 60.8%, 0%, 40%)
CIE-LAB	lab(29.22, 25.36, -53.39)
CIE-LCH	lch(29.22, 59.10, 295.41°)
OKLab	oklab(39.95% -0.0055 -0.1542)
OKLCH	oklch(39.95% 0.154 267.9)
XYZ	xyz(8.1266, 5.9241, 30.8460)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C99 #998225

analogous

#257699 #253C99 #482599

triadic

#253C99 #99253C #3C9925

tetradic

#253C99 #992576 #998225 #259948

square

#253C99 #992576 #998225 #259948

split-complementary

#253C99 #994825 #769925

monochromatic

#0D1536 #192968 #253C99 #314FCA #6078D9

Accessibility & contrast

On white

9.61

#253C99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#253C99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C99

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C99	#FFFFFF	#000000	##FFFFFF
##253C99	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9C

Deuteranopia (green-blind)

#004097

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #253c99;
/* rgb */ color: rgb(37, 60, 153);
/* oklch */ color: oklch(40.0% 0.154 267.9);

Tailwind

colors: {
  custom: {
    50: '#7171b8',
    500: '#253c99',
    950: '#000000',
  },
}

SCSS

$custom: #253c99;
$custom-light: #7171b8;
$custom-dark: #000000;

JSON

{
  "hex": "#253c99",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 153
  },
  "hsl": {
    "h": 228.103,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39951,
    "c": 0.15427,
    "h": 267.9
  },
  "luminance": 0.05925
}

Semantic roles & 50–950 ramp

primary

#253C99

secondary

#BEAA5C

accent

#C444E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #253C99

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

Preview Lab → · Contrast checker → · Palette generator →