#1F285F#1F285F

#1F285F is a dark, moderate blue. Relative luminance 0.026; OKLCH L 30.4% C 0.098 H 272.2°. Best body text is #FFFFFF at 13.75:1 contrast (WCAG AA passes).

Color values

HEX	#1F285F
RGB	rgb(31, 40, 95)
HSL	hsl(232, 51%, 25%)
HSV	hsv(232, 67%, 37%)
CMYK	cmyk(67.4%, 57.9%, 0%, 62.7%)
CIE-LAB	lab(18.52, 15.78, -34.07)
CIE-LCH	lch(18.52, 37.55, 294.85°)
OKLab	oklab(30.36% 0.0038 -0.0978)
OKLCH	oklch(30.36% 0.098 272.2)
XYZ	xyz(3.3887, 2.6348, 11.1542)
Luminance	0.0263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F285F #5F561F

analogous

#1F485F #1F285F #361F5F

triadic

#1F285F #5F1F28 #285F1F

tetradic

#1F285F #5F1F48 #5F561F #1F5F36

square

#1F285F #5F1F48 #5F561F #1F5F36

split-complementary

#1F285F #5F361F #485F1F

monochromatic

#080A17 #101531 #1F285F #2E3B8D #3D4FBB

Accessibility & contrast

On white

13.75

#1F285F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1F285F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F285F

13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F285F	#FFFFFF	#000000	##FFFFFF
##1F285F	1.00	13.75	1.53	13.75
#FFFFFF	13.75	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033061

Deuteranopia (green-blind)

#002A5E

Tritanopia (blue-blind)

#00353F

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1f285f;
/* rgb */ color: rgb(31, 40, 95);
/* oklch */ color: oklch(30.4% 0.098 272.2);

Tailwind

colors: {
  custom: {
    50: '#63618d',
    500: '#1f285f',
    950: '#000000',
  },
}

SCSS

$custom: #1f285f;
$custom-light: #63618d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f285f",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 95
  },
  "hsl": {
    "h": 231.563,
    "s": 50.794,
    "l": 24.706
  },
  "oklch": {
    "l": 0.30363,
    "c": 0.09787,
    "h": 272.2
  },
  "luminance": 0.02635
}

Semantic roles & 50–950 ramp

primary

#1F285F

secondary

#948946

accent

#C64EDA

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06050C

muted

#7A797D

Preview Lab

Preview with #1F285F

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

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