#253F79#253F79

#253F79 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.0% C 0.104 H 264.0°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#253F79
RGB	rgb(37, 63, 121)
HSL	hsl(221, 53%, 31%)
HSV	hsv(221, 69%, 47%)
CMYK	cmyk(69.4%, 47.9%, 0%, 52.5%)
CIE-LAB	lab(27.65, 10.83, -36.11)
CIE-LCH	lch(27.65, 37.70, 286.70°)
OKLab	oklab(38% -0.0109 -0.1033)
OKLCH	oklch(38% 0.104 264)
XYZ	xyz(5.9904, 5.3282, 18.7982)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F79 #795F25

analogous

#256979 #253F79 #352579

triadic

#253F79 #79253F #3F7925

tetradic

#253F79 #792569 #795F25 #257935

square

#253F79 #792569 #795F25 #257935

split-complementary

#253F79 #793525 #697925

monochromatic

#080E1B #17274A #253F79 #3357A8 #4F75C9

Accessibility & contrast

On white

10.17

#253F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#253F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F79

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F79	#FFFFFF	#000000	##FFFFFF
##253F79	1.00	10.17	2.07	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22457B

Deuteranopia (green-blind)

#123E78

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #253f79;
/* rgb */ color: rgb(37, 63, 121);
/* oklch */ color: oklch(38.0% 0.104 264.0);

Tailwind

colors: {
  custom: {
    50: '#6a73a0',
    500: '#253f79',
    950: '#000000',
  },
}

SCSS

$custom: #253f79;
$custom-light: #6a73a0;
$custom-dark: #000000;

JSON

{
  "hex": "#253f79",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 121
  },
  "hsl": {
    "h": 221.429,
    "s": 53.165,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37998,
    "c": 0.10388,
    "h": 264
  },
  "luminance": 0.05329
}

Semantic roles & 50–950 ramp

primary

#253F79

secondary

#AB8F4E

accent

#B04BDD

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #253F79

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

Preview Lab → · Contrast checker → · Palette generator →