#1F022F#1F022F

#1F022F is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 18.7% C 0.088 H 310.4°. Best body text is #FFFFFF at 18.95:1 contrast (WCAG AA passes).

Color values

HEX	#1F022F
RGB	rgb(31, 2, 47)
HSL	hsl(279, 92%, 10%)
HSV	hsv(279, 96%, 18%)
CMYK	cmyk(34%, 95.7%, 0%, 81.6%)
CIE-LAB	lab(4.88, 23.10, -22.58)
CIE-LCH	lch(4.88, 32.30, 315.66°)
OKLab	oklab(18.71% 0.0567 -0.0667)
OKLCH	oklch(18.71% 0.088 310.4)
XYZ	xyz(1.0998, 0.5400, 2.7351)
Luminance	0.0054 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F022F #122F02

analogous

#09022F #1F022F #2F0229

triadic

#1F022F #2F1F02 #022F1F

tetradic

#1F022F #2F0902 #122F02 #02292F

square

#1F022F #2F0902 #122F02 #02292F

split-complementary

#1F022F #292F02 #022F09

monochromatic

#13011D #13011D #1F022F #46046A #6C07A4

Accessibility & contrast

On white

18.95

#1F022F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#1F022F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F022F

18.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F022F	#FFFFFF	#000000	##FFFFFF
##1F022F	1.00	18.95	1.11	18.95
#FFFFFF	18.95	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F30

Deuteranopia (green-blind)

#00112E

Tritanopia (blue-blind)

#1D0C18

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #1f022f;
/* rgb */ color: rgb(31, 2, 47);
/* oklch */ color: oklch(18.7% 0.088 310.4);

Tailwind

colors: {
  custom: {
    50: '#5c4768',
    500: '#1f022f',
    950: '#000000',
  },
}

SCSS

$custom: #1f022f;
$custom-light: #5c4768;
$custom-dark: #000000;

JSON

{
  "hex": "#1f022f",
  "rgb": {
    "r": 31,
    "g": 2,
    "b": 47
  },
  "hsl": {
    "h": 278.667,
    "s": 91.837,
    "l": 9.608
  },
  "oklch": {
    "l": 0.1871,
    "c": 0.08758,
    "h": 310.4
  },
  "luminance": 0.0054
}

Semantic roles & 50–950 ramp

primary

#1F022F

secondary

#397419

accent

#FF2975

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1F022F

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

Preview Lab → · Contrast checker → · Palette generator →