#1F052F#1F052F

#1F052F is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.3% C 0.081 H 309.2°. Best body text is #FFFFFF at 18.73:1 contrast (WCAG AA passes).

Color values

HEX	#1F052F
RGB	rgb(31, 5, 47)
HSL	hsl(277, 81%, 10%)
HSV	hsv(277, 89%, 18%)
CMYK	cmyk(34%, 89.4%, 0%, 81.6%)
CIE-LAB	lab(5.47, 21.67, -21.64)
CIE-LCH	lch(5.47, 30.62, 315.04°)
OKLab	oklab(19.26% 0.0514 -0.063)
OKLCH	oklch(19.26% 0.081 309.2)
XYZ	xyz(1.1323, 0.6051, 2.7459)
Luminance	0.0060 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F052F #152F05

analogous

#0A052F #1F052F #2F052A

triadic

#1F052F #2F1F05 #052F1F

tetradic

#1F052F #2F0A05 #152F05 #052A2F

square

#1F052F #2F0A05 #152F05 #052A2F

split-complementary

#1F052F #2A2F05 #052F0A

monochromatic

#12031C #12031C #1F052F #430B66 #68119E

Accessibility & contrast

On white

18.73

#1F052F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#1F052F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F052F

18.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F052F	#FFFFFF	#000000	##FFFFFF
##1F052F	1.00	18.73	1.12	18.73
#FFFFFF	18.73	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001130

Deuteranopia (green-blind)

#00122E

Tritanopia (blue-blind)

#1D0E19

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #1f052f;
/* rgb */ color: rgb(31, 5, 47);
/* oklch */ color: oklch(19.3% 0.081 309.2);

Tailwind

colors: {
  custom: {
    50: '#5c4868',
    500: '#1f052f',
    950: '#000000',
  },
}

SCSS

$custom: #1f052f;
$custom-light: #5c4868;
$custom-dark: #000000;

JSON

{
  "hex": "#1f052f",
  "rgb": {
    "r": 31,
    "g": 5,
    "b": 47
  },
  "hsl": {
    "h": 277.143,
    "s": 80.769,
    "l": 10.196
  },
  "oklch": {
    "l": 0.1926,
    "c": 0.0813,
    "h": 309.2
  },
  "luminance": 0.00605
}

Semantic roles & 50–950 ramp

primary

#1F052F

secondary

#3E711F

accent

#F7317C

background

#F5F4F6

surface

#E9E6EB

border

#C5C2C6

text

#040006

muted

#79777A

Preview Lab

Preview with #1F052F

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

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