#1F1070#1F1070

#1F1070 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 28.0% C 0.151 H 277.5°. Best body text is #FFFFFF at 15.37:1 contrast (WCAG AA passes).

Color values

HEX	#1F1070
RGB	rgb(31, 16, 112)
HSL	hsl(249, 75%, 25%)
HSV	hsv(249, 86%, 44%)
CMYK	cmyk(72.3%, 85.7%, 0%, 56.1%)
CIE-LAB	lab(14.58, 37.26, -51.68)
CIE-LCH	lch(14.58, 63.71, 305.79°)
OKLab	oklab(28.03% 0.0197 -0.1493)
OKLCH	oklch(28.03% 0.151 277.5)
XYZ	xyz(3.6740, 1.8314, 15.4860)
Luminance	0.0183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1070 #617010

analogous

#103170 #1F1070 #4F1070

triadic

#1F1070 #701F10 #10701F

tetradic

#1F1070 #701031 #617010 #10704F

square

#1F1070 #701031 #617010 #10704F

split-complementary

#1F1070 #704F10 #317010

monochromatic

#07041B #10083A #1F1070 #2E18A6 #3D1FDB

Accessibility & contrast

On white

15.37

#1F1070 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1F1070 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1070

15.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1070	#FFFFFF	#000000	##FFFFFF
##1F1070	1.00	15.37	1.37	15.37
#FFFFFF	15.37	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002973

Deuteranopia (green-blind)

#00216E

Tritanopia (blue-blind)

#002E41

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1f1070;
/* rgb */ color: rgb(31, 16, 112);
/* oklch */ color: oklch(28.0% 0.151 277.5);

Tailwind

colors: {
  custom: {
    50: '#69529a',
    500: '#1f1070',
    950: '#000000',
  },
}

SCSS

$custom: #1f1070;
$custom-light: #69529a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1070",
  "rgb": {
    "r": 31,
    "g": 16,
    "b": 112
  },
  "hsl": {
    "h": 249.375,
    "s": 75,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28033,
    "c": 0.15061,
    "h": 277.5
  },
  "luminance": 0.01832
}

Semantic roles & 50–950 ramp

primary

#1F1070

secondary

#96A834

accent

#F236D4

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1F1070

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

Preview Lab → · Contrast checker → · Palette generator →