#0A031B#0A031B

#0A031B is a very dark, muted violet. Relative luminance 0.002; OKLCH L 13.4% C 0.054 H 294.4°. Best body text is #FFFFFF at 20.16:1 contrast (WCAG AA passes).

Color values

HEX	#0A031B
RGB	rgb(10, 3, 27)
HSL	hsl(258, 80%, 6%)
HSV	hsv(258, 89%, 11%)
CMYK	cmyk(63%, 88.9%, 0%, 89.4%)
CIE-LAB	lab(1.89, 6.43, -11.84)
CIE-LCH	lch(1.89, 13.48, 298.51°)
OKLab	oklab(13.38% 0.0222 -0.049)
OKLCH	oklch(13.38% 0.054 294.4)
XYZ	xyz(0.3555, 0.2088, 1.0583)
Luminance	0.0021 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 10.62

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A031B #141B03

analogous

#03081B #0A031B #16031B

triadic

#0A031B #1B0A03 #031B0A

tetradic

#0A031B #1B0308 #141B03 #031B16

square

#0A031B #1B0308 #141B03 #031B16

split-complementary

#0A031B #1B1603 #081B03

monochromatic

#0A031C #0A031C #0A031C #1E0952 #330F89

Accessibility & contrast

On white

20.16

#0A031B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#0A031B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A031B

20.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A031B	#FFFFFF	#000000	##FFFFFF
##0A031B	1.00	20.16	1.04	20.16
#FFFFFF	20.16	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00071C

Deuteranopia (green-blind)

#00071A

Tritanopia (blue-blind)

#06070D

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #0a031b;
/* rgb */ color: rgb(10, 3, 27);
/* oklch */ color: oklch(13.4% 0.054 294.4);

Tailwind

colors: {
  custom: {
    50: '#4b4857',
    500: '#0a031b',
    950: '#000000',
  },
}

SCSS

$custom: #0a031b;
$custom-light: #4b4857;
$custom-dark: #000000;

JSON

{
  "hex": "#0a031b",
  "rgb": {
    "r": 10,
    "g": 3,
    "b": 27
  },
  "hsl": {
    "h": 257.5,
    "s": 80,
    "l": 5.882
  },
  "oklch": {
    "l": 0.13384,
    "c": 0.05378,
    "h": 294.4
  },
  "luminance": 0.00209
}

Semantic roles & 50–950 ramp

primary

#0A031B

secondary

#4B5F1B

accent

#F631BD

background

#F4F4F5

surface

#E7E6E9

border

#C3C2C5

text

#010003

muted

#777778

Preview Lab

Preview with #0A031B

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

Preview Lab → · Contrast checker → · Palette generator →