#1F0F57#1F0F57

#1F0F57 is a very dark, moderate violet. Relative luminance 0.013; OKLCH L 25.0% C 0.120 H 283.8°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F0F57
RGB	rgb(31, 15, 87)
HSL	hsl(253, 71%, 20%)
HSV	hsv(253, 83%, 34%)
CMYK	cmyk(64.4%, 82.8%, 0%, 65.9%)
CIE-LAB	lab(11.42, 29.62, -40.29)
CIE-LCH	lch(11.42, 50.01, 306.32°)
OKLab	oklab(24.96% 0.0284 -0.1161)
OKLCH	oklch(24.96% 0.12 283.8)
XYZ	xyz(2.4557, 1.3209, 9.1405)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0F57 #47570F

analogous

#0F2357 #1F0F57 #430F57

triadic

#1F0F57 #571F0F #0F571F

tetradic

#1F0F57 #570F23 #47570F #0F5743

square

#1F0F57 #570F23 #47570F #0F5743

split-complementary

#1F0F57 #57430F #23570F

monochromatic

#09051A #0C0623 #1F0F57 #32188B #4421BF

Accessibility & contrast

On white

16.61

#1F0F57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#1F0F57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0F57

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0F57	#FFFFFF	#000000	##FFFFFF
##1F0F57	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002059

Deuteranopia (green-blind)

#001C56

Tritanopia (blue-blind)

#002432

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #1f0f57;
/* rgb */ color: rgb(31, 15, 87);
/* oklch */ color: oklch(25.0% 0.120 283.8);

Tailwind

colors: {
  custom: {
    50: '#635087',
    500: '#1f0f57',
    950: '#000000',
  },
}

SCSS

$custom: #1f0f57;
$custom-light: #635087;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0f57",
  "rgb": {
    "r": 31,
    "g": 15,
    "b": 87
  },
  "hsl": {
    "h": 253.333,
    "s": 70.588,
    "l": 20
  },
  "oklch": {
    "l": 0.24961,
    "c": 0.11957,
    "h": 283.8
  },
  "luminance": 0.01321
}

Semantic roles & 50–950 ramp

primary

#1F0F57

secondary

#7C9131

accent

#ED3AC6

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020B

muted

#7A787C

Preview Lab

Preview with #1F0F57

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

Preview Lab → · Contrast checker → · Palette generator →