#253E73#253E73

#253E73 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.3% C 0.096 H 263.5°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#253E73
RGB	rgb(37, 62, 115)
HSL	hsl(221, 51%, 30%)
HSV	hsv(221, 68%, 45%)
CMYK	cmyk(67.8%, 46.1%, 0%, 54.9%)
CIE-LAB	lab(26.95, 9.19, -33.44)
CIE-LCH	lch(26.95, 34.68, 285.37°)
OKLab	oklab(37.33% -0.011 -0.0955)
OKLCH	oklch(37.33% 0.096 263.5)
XYZ	xyz(5.5790, 5.0758, 16.9021)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253E73 #735A25

analogous

#256573 #253E73 #332573

triadic

#253E73 #73253E #3E7325

tetradic

#253E73 #732565 #735A25 #257333

square

#253E73 #732565 #735A25 #257333

split-complementary

#253E73 #733325 #657325

monochromatic

#070C17 #162545 #253E73 #3457A1 #4D74C6

Accessibility & contrast

On white

10.42

#253E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#253E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253E73

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253E73	#FFFFFF	#000000	##FFFFFF
##253E73	1.00	10.42	2.02	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254475

Deuteranopia (green-blind)

#183C72

Tritanopia (blue-blind)

#004A53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #253e73;
/* rgb */ color: rgb(37, 62, 115);
/* oklch */ color: oklch(37.3% 0.096 263.5);

Tailwind

colors: {
  custom: {
    50: '#69729c',
    500: '#253e73',
    950: '#000000',
  },
}

SCSS

$custom: #253e73;
$custom-light: #69729c;
$custom-dark: #000000;

JSON

{
  "hex": "#253e73",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 115
  },
  "hsl": {
    "h": 220.769,
    "s": 51.316,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37333,
    "c": 0.0961,
    "h": 263.5
  },
  "luminance": 0.05076
}

Semantic roles & 50–950 ramp

primary

#253E73

secondary

#A68A4E

accent

#AD4DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #253E73

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

Preview Lab → · Contrast checker → · Palette generator →