#253B70#253B70

#253B70 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.096 H 265.1°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#253B70
RGB	rgb(37, 59, 112)
HSL	hsl(222, 50%, 29%)
HSV	hsv(222, 67%, 44%)
CMYK	cmyk(67%, 47.3%, 0%, 56.1%)
CIE-LAB	lab(25.83, 10.10, -33.31)
CIE-LCH	lch(25.83, 34.81, 286.87°)
OKLab	oklab(36.41% -0.0082 -0.0951)
OKLCH	oklch(36.41% 0.096 265.1)
XYZ	xyz(5.2505, 4.6906, 15.9548)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B70 #705A25

analogous

#256170 #253B70 #352570

triadic

#253B70 #70253B #3B7025

tetradic

#253B70 #702561 #705A25 #257035

square

#253B70 #702561 #705A25 #257035

split-complementary

#253B70 #703525 #617025

monochromatic

#080C17 #162342 #253B70 #34539E #4C6FC4

Accessibility & contrast

On white

10.83

#253B70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#253B70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B70

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B70	#FFFFFF	#000000	##FFFFFF
##253B70	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224172

Deuteranopia (green-blind)

#153A6F

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #253b70;
/* rgb */ color: rgb(37, 59, 112);
/* oklch */ color: oklch(36.4% 0.096 265.1);

Tailwind

colors: {
  custom: {
    50: '#687099',
    500: '#253b70',
    950: '#000000',
  },
}

SCSS

$custom: #253b70;
$custom-light: #687099;
$custom-dark: #000000;

JSON

{
  "hex": "#253b70",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 112
  },
  "hsl": {
    "h": 222.4,
    "s": 50.336,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36412,
    "c": 0.0955,
    "h": 265.1
  },
  "luminance": 0.04691
}

Semantic roles & 50–950 ramp

primary

#253B70

secondary

#A38A4E

accent

#B14EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #253B70

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

Preview Lab → · Contrast checker → · Palette generator →