#0A0731#0A0731

#0A0731 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.1% C 0.080 H 277.4°. Best body text is #FFFFFF at 19.31:1 contrast (WCAG AA passes).

Color values

HEX	#0A0731
RGB	rgb(10, 7, 49)
HSL	hsl(244, 75%, 11%)
HSV	hsv(244, 86%, 19%)
CMYK	cmyk(79.6%, 85.7%, 0%, 80.8%)
CIE-LAB	lab(3.96, 13.88, -25.66)
CIE-LCH	lch(3.96, 29.17, 298.42°)
OKLab	oklab(17.14% 0.0102 -0.079)
OKLCH	oklch(17.14% 0.08 277.4)
XYZ	xyz(0.7554, 0.4382, 2.9499)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0731 #2E3107

analogous

#071931 #0A0731 #1F0731

triadic

#0A0731 #310A07 #07310A

tetradic

#0A0731 #310719 #2E3107 #07311F

square

#0A0731 #310719 #2E3107 #07311F

split-complementary

#0A0731 #311F07 #193107

monochromatic

#05041B #05041B #0A0731 #150F67 #20169C

Accessibility & contrast

On white

19.31

#0A0731 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0A0731 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0731

19.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0731	#FFFFFF	#000000	##FFFFFF
##0A0731	1.00	19.31	1.09	19.31
#FFFFFF	19.31	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001032

Deuteranopia (green-blind)

#000C30

Tritanopia (blue-blind)

#00121B

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #0a0731;
/* rgb */ color: rgb(10, 7, 49);
/* oklch */ color: oklch(17.1% 0.080 277.4);

Tailwind

colors: {
  custom: {
    50: '#4e4969',
    500: '#0a0731',
    950: '#000000',
  },
}

SCSS

$custom: #0a0731;
$custom-light: #4e4969;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0731",
  "rgb": {
    "r": 10,
    "g": 7,
    "b": 49
  },
  "hsl": {
    "h": 244.286,
    "s": 75,
    "l": 10.98
  },
  "oklch": {
    "l": 0.17135,
    "c": 0.07962,
    "h": 277.4
  },
  "luminance": 0.00438
}

Semantic roles & 50–950 ramp

primary

#0A0731

secondary

#6B7123

accent

#F236E4

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#020006

muted

#78777A

Preview Lab

Preview with #0A0731

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

Preview Lab → · Contrast checker → · Palette generator →