#1F1237#1F1237

#1F1237 is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.3% C 0.069 H 296.5°. Best body text is #FFFFFF at 17.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F1237
RGB	rgb(31, 18, 55)
HSL	hsl(261, 51%, 14%)
HSV	hsv(261, 67%, 22%)
CMYK	cmyk(43.6%, 67.3%, 0%, 78.4%)
CIE-LAB	lab(8.99, 16.89, -21.87)
CIE-LCH	lch(8.99, 27.63, 307.68°)
OKLab	oklab(22.25% 0.031 -0.0621)
OKLCH	oklch(22.25% 0.069 296.5)
XYZ	xyz(1.4708, 0.9997, 3.7292)
Luminance	0.0100 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1237 #2A3712

analogous

#121837 #1F1237 #321237

triadic

#1F1237 #371F12 #12371F

tetradic

#1F1237 #371218 #2A3712 #123732

square

#1F1237 #371218 #2A3712 #123732

split-complementary

#1F1237 #373212 #183712

monochromatic

#0D0817 #0D0817 #1F1237 #392165 #533093

Accessibility & contrast

On white

17.50

#1F1237 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#1F1237 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1237

17.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1237	#FFFFFF	#000000	##FFFFFF
##1F1237	1.00	17.50	1.20	17.50
#FFFFFF	17.50	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021A38

Deuteranopia (green-blind)

#051936

Tritanopia (blue-blind)

#191A22

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1f1237;
/* rgb */ color: rgb(31, 18, 55);
/* oklch */ color: oklch(22.3% 0.069 296.5);

Tailwind

colors: {
  custom: {
    50: '#5d506e',
    500: '#1f1237',
    950: '#000000',
  },
}

SCSS

$custom: #1f1237;
$custom-light: #5d506e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1237",
  "rgb": {
    "r": 31,
    "g": 18,
    "b": 55
  },
  "hsl": {
    "h": 261.081,
    "s": 50.685,
    "l": 14.314
  },
  "oklch": {
    "l": 0.22254,
    "c": 0.06939,
    "h": 296.5
  },
  "luminance": 0.01
}

Semantic roles & 50–950 ramp

primary

#1F1237

secondary

#5B7035

accent

#DA4EA9

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040207

muted

#79787A

Preview Lab

Preview with #1F1237

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

Preview Lab → · Contrast checker → · Palette generator →