#1F1361#1F1361

#1F1361 is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.7% C 0.129 H 280.1°. Best body text is #FFFFFF at 15.86:1 contrast (WCAG AA passes).

Color values

HEX	#1F1361
RGB	rgb(31, 19, 97)
HSL	hsl(249, 67%, 23%)
HSV	hsv(249, 80%, 38%)
CMYK	cmyk(68%, 80.4%, 0%, 62%)
CIE-LAB	lab(13.35, 30.71, -43.83)
CIE-LCH	lch(13.35, 53.52, 305.01°)
OKLab	oklab(26.65% 0.0226 -0.1265)
OKLCH	oklch(26.65% 0.129 280.1)
XYZ	xyz(2.9549, 1.6199, 11.4639)
Luminance	0.0162 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1361 #556113

analogous

#132E61 #1F1361 #461361

triadic

#1F1361 #611F13 #13611F

tetradic

#1F1361 #61132E #556113 #136146

square

#1F1361 #61132E #556113 #136146

split-complementary

#1F1361 #614613 #2E6113

monochromatic

#08051A #0F092E #1F1361 #2F1D94 #4027C7

Accessibility & contrast

On white

15.86

#1F1361 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#1F1361 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1361

15.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1361	#FFFFFF	#000000	##FFFFFF
##1F1361	1.00	15.86	1.32	15.86
#FFFFFF	15.86	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002563

Deuteranopia (green-blind)

#001F60

Tritanopia (blue-blind)

#002939

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1f1361;
/* rgb */ color: rgb(31, 19, 97);
/* oklch */ color: oklch(26.7% 0.129 280.1);

Tailwind

colors: {
  custom: {
    50: '#65538f',
    500: '#1f1361',
    950: '#000000',
  },
}

SCSS

$custom: #1f1361;
$custom-light: #65538f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1361",
  "rgb": {
    "r": 31,
    "g": 19,
    "b": 97
  },
  "hsl": {
    "h": 249.231,
    "s": 67.241,
    "l": 22.745
  },
  "oklch": {
    "l": 0.26654,
    "c": 0.12853,
    "h": 280.1
  },
  "luminance": 0.0162
}

Semantic roles & 50–950 ramp

primary

#1F1361

secondary

#8A9937

accent

#EA3ED0

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1F1361

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

Preview Lab → · Contrast checker → · Palette generator →