#1F1889#1F1889

#1F1889 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.175 H 273.1°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#1F1889
RGB	rgb(31, 24, 137)
HSL	hsl(244, 70%, 32%)
HSV	hsv(244, 82%, 54%)
CMYK	cmyk(77.4%, 82.5%, 0%, 46.3%)
CIE-LAB	lab(19.01, 41.36, -60.29)
CIE-LCH	lch(19.01, 73.11, 304.45°)
OKLab	oklab(32% 0.0094 -0.1744)
OKLCH	oklch(32% 0.175 273.1)
XYZ	xyz(5.4056, 2.7501, 23.9080)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1889 #828918

analogous

#184A89 #1F1889 #581889

triadic

#1F1889 #891F18 #18891F

tetradic

#1F1889 #89184A #828918 #188958

square

#1F1889 #89184A #828918 #188958

split-complementary

#1F1889 #895818 #4A8918

monochromatic

#070621 #130F55 #1F1889 #2B21BD #483EDD

Accessibility & contrast

On white

13.55

#1F1889 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1F1889 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1889

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1889	#FFFFFF	#000000	##FFFFFF
##1F1889	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338C

Deuteranopia (green-blind)

#002987

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f1889;
/* rgb */ color: rgb(31, 24, 137);
/* oklch */ color: oklch(32.0% 0.175 273.1);

Tailwind

colors: {
  custom: {
    50: '#6f58ad',
    500: '#1f1889',
    950: '#000000',
  },
}

SCSS

$custom: #1f1889;
$custom-light: #6f58ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1889",
  "rgb": {
    "r": 31,
    "g": 24,
    "b": 137
  },
  "hsl": {
    "h": 243.717,
    "s": 70.186,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32001,
    "c": 0.17468,
    "h": 273.1
  },
  "luminance": 0.02751
}

Semantic roles & 50–950 ramp

primary

#1F1889

secondary

#B5BD40

accent

#ED3BE2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #1F1889

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

Preview Lab → · Contrast checker → · Palette generator →