#253F71#253F71

#253F71 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.092 H 262.2°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#253F71
RGB	rgb(37, 63, 113)
HSL	hsl(219, 51%, 29%)
HSV	hsv(219, 67%, 44%)
CMYK	cmyk(67.3%, 44.2%, 0%, 55.7%)
CIE-LAB	lab(27.13, 7.72, -31.88)
CIE-LCH	lch(27.13, 32.80, 283.62°)
OKLab	oklab(37.43% -0.0125 -0.0909)
OKLCH	oklch(37.43% 0.092 262.2)
XYZ	xyz(5.5200, 5.1401, 16.3208)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F71 #715725

analogous

#256571 #253F71 #312571

triadic

#253F71 #71253F #3F7125

tetradic

#253F71 #712565 #715725 #257131

square

#253F71 #712565 #715725 #257131

split-complementary

#253F71 #713125 #657125

monochromatic

#080D17 #162543 #253F71 #34599F #4C75C4

Accessibility & contrast

On white

10.35

#253F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#253F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F71

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F71	#FFFFFF	#000000	##FFFFFF
##253F71	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284473

Deuteranopia (green-blind)

#1C3D70

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #253f71;
/* rgb */ color: rgb(37, 63, 113);
/* oklch */ color: oklch(37.4% 0.092 262.2);

Tailwind

colors: {
  custom: {
    50: '#68739a',
    500: '#253f71',
    950: '#000000',
  },
}

SCSS

$custom: #253f71;
$custom-light: #68739a;
$custom-dark: #000000;

JSON

{
  "hex": "#253f71",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 113
  },
  "hsl": {
    "h": 219.474,
    "s": 50.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.3743,
    "c": 0.09173,
    "h": 262.2
  },
  "luminance": 0.05141
}

Semantic roles & 50–950 ramp

primary

#253F71

secondary

#A4864E

accent

#AA4EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #253F71

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

Preview Lab → · Contrast checker → · Palette generator →