#1F2A72#1F2A72

#1F2A72 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.5% C 0.124 H 271.1°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#1F2A72
RGB	rgb(31, 42, 114)
HSL	hsl(232, 57%, 28%)
HSV	hsv(232, 73%, 45%)
CMYK	cmyk(72.8%, 63.2%, 0%, 55.3%)
CIE-LAB	lab(20.68, 21.83, -42.94)
CIE-LCH	lch(20.68, 48.17, 296.94°)
OKLab	oklab(32.48% 0.0024 -0.1238)
OKLCH	oklch(32.48% 0.124 271.1)
XYZ	xyz(4.4293, 3.1617, 16.2932)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2A72 #72671F

analogous

#1F5372 #1F2A72 #3D1F72

triadic

#1F2A72 #721F2A #2A721F

tetradic

#1F2A72 #721F53 #72671F #1F723D

square

#1F2A72 #721F53 #72671F #1F723D

split-complementary

#1F2A72 #723D1F #53721F

monochromatic

#070918 #121842 #1F2A72 #2C3CA2 #4053CB

Accessibility & contrast

On white

12.86

#1F2A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#1F2A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2A72

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2A72	#FFFFFF	#000000	##FFFFFF
##1F2A72	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003674

Deuteranopia (green-blind)

#002E71

Tritanopia (blue-blind)

#003C49

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f2a72;
/* rgb */ color: rgb(31, 42, 114);
/* oklch */ color: oklch(32.5% 0.124 271.1);

Tailwind

colors: {
  custom: {
    50: '#67639b',
    500: '#1f2a72',
    950: '#000000',
  },
}

SCSS

$custom: #1f2a72;
$custom-light: #67639b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2a72",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 114
  },
  "hsl": {
    "h": 232.048,
    "s": 57.241,
    "l": 28.431
  },
  "oklch": {
    "l": 0.32477,
    "c": 0.12387,
    "h": 271.1
  },
  "luminance": 0.03162
}

Semantic roles & 50–950 ramp

primary

#1F2A72

secondary

#A69947

accent

#CC47E0

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1F2A72

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

Preview Lab → · Contrast checker → · Palette generator →