#253A8E#253A8E

#253A8E is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.141 H 268.3°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#253A8E
RGB	rgb(37, 58, 142)
HSL	hsl(228, 59%, 35%)
HSV	hsv(228, 74%, 56%)
CMYK	cmyk(73.9%, 59.2%, 0%, 44.3%)
CIE-LAB	lab(27.77, 22.48, -49.01)
CIE-LCH	lch(27.77, 53.92, 294.64°)
OKLab	oklab(38.58% -0.0042 -0.1413)
OKLCH	oklch(38.58% 0.141 268.3)
XYZ	xyz(7.1568, 5.3717, 26.2456)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253A8E #8E7925

analogous

#256E8E #253A8E #45258E

triadic

#253A8E #8E253A #3A8E25

tetradic

#253A8E #8E256E #8E7925 #258E45

square

#253A8E #8E256E #8E7925 #258E45

split-complementary

#253A8E #8E4525 #6E8E25

monochromatic

#0C122D #18265D #253A8E #324EBF #5A72D4

Accessibility & contrast

On white

10.12

#253A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#253A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253A8E

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253A8E	#FFFFFF	#000000	##FFFFFF
##253A8E	1.00	10.12	2.07	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004791

Deuteranopia (green-blind)

#003D8C

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #253a8e;
/* rgb */ color: rgb(37, 58, 142);
/* oklch */ color: oklch(38.6% 0.141 268.3);

Tailwind

colors: {
  custom: {
    50: '#6f6fb0',
    500: '#253a8e',
    950: '#000000',
  },
}

SCSS

$custom: #253a8e;
$custom-light: #6f6fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#253a8e",
  "rgb": {
    "r": 37,
    "g": 58,
    "b": 142
  },
  "hsl": {
    "h": 228,
    "s": 58.659,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38583,
    "c": 0.14139,
    "h": 268.3
  },
  "luminance": 0.05372
}

Semantic roles & 50–950 ramp

primary

#253A8E

secondary

#B9A556

accent

#C346E2

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #253A8E

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

Preview Lab → · Contrast checker → · Palette generator →