#1F043F#1F043F

#1F043F is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.8% C 0.102 H 297.5°. Best body text is #FFFFFF at 18.30:1 contrast (WCAG AA passes).

Color values

HEX	#1F043F
RGB	rgb(31, 4, 63)
HSL	hsl(267, 88%, 13%)
HSV	hsv(267, 94%, 25%)
CMYK	cmyk(50.8%, 93.7%, 0%, 75.3%)
CIE-LAB	lab(6.66, 27.91, -31.41)
CIE-LCH	lch(6.66, 42.02, 311.62°)
OKLab	oklab(20.77% 0.0471 -0.0904)
OKLCH	oklch(20.77% 0.102 297.5)
XYZ	xyz(1.5055, 0.7370, 4.7646)
Luminance	0.0074 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F043F #243F04

analogous

#04063F #1F043F #3C043F

triadic

#1F043F #3F1F04 #043F1F

tetradic

#1F043F #3F0406 #243F04 #043F3C

square

#1F043F #3F0406 #243F04 #043F3C

split-complementary

#1F043F #3F3C04 #063F04

monochromatic

#0E021D #0E021D #1F043F #3B0879 #580BB2

Accessibility & contrast

On white

18.30

#1F043F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#1F043F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F043F

18.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F043F	#FFFFFF	#000000	##FFFFFF
##1F043F	1.00	18.30	1.15	18.30
#FFFFFF	18.30	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001541

Deuteranopia (green-blind)

#00143E

Tritanopia (blue-blind)

#161522

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #1f043f;
/* rgb */ color: rgb(31, 4, 63);
/* oklch */ color: oklch(20.8% 0.102 297.5);

Tailwind

colors: {
  custom: {
    50: '#5f4875',
    500: '#1f043f',
    950: '#000000',
  },
}

SCSS

$custom: #1f043f;
$custom-light: #5f4875;
$custom-dark: #000000;

JSON

{
  "hex": "#1f043f",
  "rgb": {
    "r": 31,
    "g": 4,
    "b": 63
  },
  "hsl": {
    "h": 267.458,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.20773,
    "c": 0.10199,
    "h": 297.5
  },
  "luminance": 0.00737
}

Semantic roles & 50–950 ramp

primary

#1F043F

secondary

#54801E

accent

#FE2A9D

background

#F5F4F7

surface

#EAE6ED

border

#C6C2C8

text

#050008

muted

#79777B

Preview Lab

Preview with #1F043F

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

Preview Lab → · Contrast checker → · Palette generator →