#253B6F#253B6F

#253B6F is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.3% C 0.094 H 264.9°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#253B6F
RGB	rgb(37, 59, 111)
HSL	hsl(222, 50%, 29%)
HSV	hsv(222, 67%, 44%)
CMYK	cmyk(66.7%, 46.8%, 0%, 56.5%)
CIE-LAB	lab(25.77, 9.72, -32.78)
CIE-LCH	lch(25.77, 34.19, 286.51°)
OKLab	oklab(36.34% -0.0084 -0.0936)
OKLCH	oklch(36.34% 0.094 264.9)
XYZ	xyz(5.1952, 4.6685, 15.6632)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B6F #6F5925

analogous

#25606F #253B6F #34256F

triadic

#253B6F #6F253B #3B6F25

tetradic

#253B6F #6F2560 #6F5925 #256F34

square

#253B6F #6F2560 #6F5925 #256F34

split-complementary

#253B6F #6F3425 #606F25

monochromatic

#080C17 #162341 #253B6F #34539D #4B6FC3

Accessibility & contrast

On white

10.86

#253B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#253B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B6F

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B6F	#FFFFFF	#000000	##FFFFFF
##253B6F	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224171

Deuteranopia (green-blind)

#163A6E

Tritanopia (blue-blind)

#00474F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #253b6f;
/* rgb */ color: rgb(37, 59, 111);
/* oklch */ color: oklch(36.3% 0.094 264.9);

Tailwind

colors: {
  custom: {
    50: '#687099',
    500: '#253b6f',
    950: '#000000',
  },
}

SCSS

$custom: #253b6f;
$custom-light: #687099;
$custom-dark: #000000;

JSON

{
  "hex": "#253b6f",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 111
  },
  "hsl": {
    "h": 222.162,
    "s": 50,
    "l": 29.02
  },
  "oklch": {
    "l": 0.3634,
    "c": 0.09396,
    "h": 264.9
  },
  "luminance": 0.04669
}

Semantic roles & 50–950 ramp

primary

#253B6F

secondary

#A2894E

accent

#B04EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #253B6F

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

Preview Lab → · Contrast checker → · Palette generator →