#253F73#253F73

#253F73 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.6% C 0.095 H 262.7°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#253F73
RGB	rgb(37, 63, 115)
HSL	hsl(220, 51%, 30%)
HSV	hsv(220, 68%, 45%)
CMYK	cmyk(67.8%, 45.2%, 0%, 54.9%)
CIE-LAB	lab(27.26, 8.50, -32.94)
CIE-LCH	lch(27.26, 34.02, 284.46°)
OKLab	oklab(37.57% -0.0121 -0.094)
OKLCH	oklch(37.57% 0.095 262.7)
XYZ	xyz(5.6339, 5.1856, 16.9203)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F73 #735925

analogous

#256673 #253F73 #322573

triadic

#253F73 #73253F #3F7325

tetradic

#253F73 #732566 #735925 #257332

square

#253F73 #732566 #735925 #257332

split-complementary

#253F73 #733225 #667325

monochromatic

#070D17 #162645 #253F73 #3458A1 #4D75C6

Accessibility & contrast

On white

10.31

#253F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#253F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F73

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F73	#FFFFFF	#000000	##FFFFFF
##253F73	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274475

Deuteranopia (green-blind)

#1A3D72

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #253f73;
/* rgb */ color: rgb(37, 63, 115);
/* oklch */ color: oklch(37.6% 0.095 262.7);

Tailwind

colors: {
  custom: {
    50: '#69739b',
    500: '#253f73',
    950: '#000000',
  },
}

SCSS

$custom: #253f73;
$custom-light: #69739b;
$custom-dark: #000000;

JSON

{
  "hex": "#253f73",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 115
  },
  "hsl": {
    "h": 220,
    "s": 51.316,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37569,
    "c": 0.09478,
    "h": 262.7
  },
  "luminance": 0.05186
}

Semantic roles & 50–950 ramp

primary

#253F73

secondary

#A6884E

accent

#AC4DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #253F73

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

Preview Lab → · Contrast checker → · Palette generator →