#253B6C#253B6C

#253B6C is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.1% C 0.089 H 264.2°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#253B6C
RGB	rgb(37, 59, 108)
HSL	hsl(221, 49%, 28%)
HSV	hsv(221, 66%, 42%)
CMYK	cmyk(65.7%, 45.4%, 0%, 57.6%)
CIE-LAB	lab(25.57, 8.56, -31.17)
CIE-LCH	lch(25.57, 32.33, 285.35°)
OKLab	oklab(36.13% -0.009 -0.0889)
OKLCH	oklch(36.13% 0.089 264.2)
XYZ	xyz(5.0328, 4.6035, 14.8078)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B6C #6C5625

analogous

#255E6C #253B6C #32256C

triadic

#253B6C #6C253B #3B6C25

tetradic

#253B6C #6C255E #6C5625 #256C32

square

#253B6C #6C255E #6C5625 #256C32

split-complementary

#253B6C #6C3225 #5E6C25

monochromatic

#080C17 #15223E #253B6C #35549A #4A6FC1

Accessibility & contrast

On white

10.93

#253B6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#253B6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B6C

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B6C	#FFFFFF	#000000	##FFFFFF
##253B6C	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25406E

Deuteranopia (green-blind)

#1A3A6B

Tritanopia (blue-blind)

#00464E

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #253b6c;
/* rgb */ color: rgb(37, 59, 108);
/* oklch */ color: oklch(36.1% 0.089 264.2);

Tailwind

colors: {
  custom: {
    50: '#677096',
    500: '#253b6c',
    950: '#000000',
  },
}

SCSS

$custom: #253b6c;
$custom-light: #677096;
$custom-dark: #000000;

JSON

{
  "hex": "#253b6c",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 108
  },
  "hsl": {
    "h": 221.408,
    "s": 48.966,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36128,
    "c": 0.08931,
    "h": 264.2
  },
  "luminance": 0.04604
}

Semantic roles & 50–950 ramp

primary

#253B6C

secondary

#9F864E

accent

#AE4FD9

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #253B6C

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

Preview Lab → · Contrast checker → · Palette generator →