#1F072B#1F072B

#1F072B is a very dark, moderate purple. Relative luminance 0.006; OKLCH L 19.3% C 0.072 H 312.3°. Best body text is #FFFFFF at 18.69:1 contrast (WCAG AA passes).

Color values

HEX	#1F072B
RGB	rgb(31, 7, 43)
HSL	hsl(280, 72%, 10%)
HSV	hsv(280, 84%, 17%)
CMYK	cmyk(27.9%, 83.7%, 0%, 83.1%)
CIE-LAB	lab(5.58, 19.29, -18.46)
CIE-LCH	lch(5.58, 26.70, 316.26°)
OKLab	oklab(19.25% 0.0487 -0.0535)
OKLCH	oklch(19.25% 0.072 312.3)
XYZ	xyz(1.0770, 0.6177, 2.3475)
Luminance	0.0062 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F072B #132B07

analogous

#0D072B #1F072B #2B0725

triadic

#1F072B #2B1F07 #072B1F

tetradic

#1F072B #2B0D07 #132B07 #07252B

square

#1F072B #2B0D07 #132B07 #07252B

split-complementary

#1F072B #252B07 #072B0D

monochromatic

#13041A #13041A #1F072B #451060 #6B1894

Accessibility & contrast

On white

18.69

#1F072B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#1F072B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F072B

18.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F072B	#FFFFFF	#000000	##FFFFFF
##1F072B	1.00	18.69	1.12	18.69
#FFFFFF	18.69	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00112C

Deuteranopia (green-blind)

#04132A

Tritanopia (blue-blind)

#1E0E18

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #1f072b;
/* rgb */ color: rgb(31, 7, 43);
/* oklch */ color: oklch(19.3% 0.072 312.3);

Tailwind

colors: {
  custom: {
    50: '#5c4964',
    500: '#1f072b',
    950: '#000000',
  },
}

SCSS

$custom: #1f072b;
$custom-light: #5c4964;
$custom-dark: #000000;

JSON

{
  "hex": "#1f072b",
  "rgb": {
    "r": 31,
    "g": 7,
    "b": 43
  },
  "hsl": {
    "h": 280,
    "s": 72,
    "l": 9.804
  },
  "oklch": {
    "l": 0.19251,
    "c": 0.07235,
    "h": 312.3
  },
  "luminance": 0.00618
}

Semantic roles & 50–950 ramp

primary

#1F072B

secondary

#3B6B23

accent

#EF3976

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#040105

muted

#79777A

Preview Lab

Preview with #1F072B

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

Preview Lab → · Contrast checker → · Palette generator →