#1F3482#1F3482

#1F3482 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.0% C 0.134 H 267.6°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#1F3482
RGB	rgb(31, 52, 130)
HSL	hsl(227, 61%, 32%)
HSV	hsv(227, 76%, 51%)
CMYK	cmyk(76.2%, 60%, 0%, 49%)
CIE-LAB	lab(24.82, 21.13, -46.35)
CIE-LCH	lch(24.82, 50.94, 294.50°)
OKLab	oklab(35.99% -0.0056 -0.1337)
OKLCH	oklch(35.99% 0.134 267.6)
XYZ	xyz(5.8209, 4.3584, 21.6492)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3482 #826D1F

analogous

#1F6682 #1F3482 #3C1F82

triadic

#1F3482 #821F34 #34821F

tetradic

#1F3482 #821F66 #826D1F #1F823C

square

#1F3482 #821F66 #826D1F #1F823C

split-complementary

#1F3482 #823C1F #66821F

monochromatic

#070C1F #132051 #1F3482 #2B48B3 #4866D3

Accessibility & contrast

On white

11.22

#1F3482 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1F3482 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3482

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3482	#FFFFFF	#000000	##FFFFFF
##1F3482	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004085

Deuteranopia (green-blind)

#003680

Tritanopia (blue-blind)

#004755

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f3482;
/* rgb */ color: rgb(31, 52, 130);
/* oklch */ color: oklch(36.0% 0.134 267.6);

Tailwind

colors: {
  custom: {
    50: '#6a6ba7',
    500: '#1f3482',
    950: '#000000',
  },
}

SCSS

$custom: #1f3482;
$custom-light: #6a6ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3482",
  "rgb": {
    "r": 31,
    "g": 52,
    "b": 130
  },
  "hsl": {
    "h": 227.273,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35989,
    "c": 0.13385,
    "h": 267.6
  },
  "luminance": 0.04359
}

Semantic roles & 50–950 ramp

primary

#1F3482

secondary

#B59E48

accent

#C243E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F3482

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

Preview Lab → · Contrast checker → · Palette generator →