#101131#101131

#101131 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.9% C 0.062 H 277.8°. Best body text is #FFFFFF at 18.32:1 contrast (WCAG AA passes).

Color values

HEX	#101131
RGB	rgb(16, 17, 49)
HSL	hsl(238, 51%, 13%)
HSV	hsv(238, 67%, 19%)
CMYK	cmyk(67.3%, 65.3%, 0%, 80.8%)
CIE-LAB	lab(6.62, 10.90, -21.38)
CIE-LCH	lch(6.62, 24.00, 297.01°)
OKLab	oklab(19.87% 0.0084 -0.0616)
OKLCH	oklch(19.87% 0.062 277.8)
XYZ	xyz(0.9683, 0.7327, 2.9955)
Luminance	0.0073 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101131 #313010

analogous

#102131 #101131 #1F1031

triadic

#101131 #311011 #113110

tetradic

#101131 #311021 #313010 #10311F

square

#101131 #311021 #313010 #10311F

split-complementary

#101131 #311F10 #213110

monochromatic

#080817 #080817 #101131 #1F215F #2E318D

Accessibility & contrast

On white

18.32

#101131 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#101131 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101131

18.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101131	#FFFFFF	#000000	##FFFFFF
##101131	1.00	18.32	1.15	18.32
#FFFFFF	18.32	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011632

Deuteranopia (green-blind)

#001330

Tritanopia (blue-blind)

#02181E

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #101131;
/* rgb */ color: rgb(16, 17, 49);
/* oklch */ color: oklch(19.9% 0.062 277.8);

Tailwind

colors: {
  custom: {
    50: '#524e69',
    500: '#101131',
    950: '#000000',
  },
}

SCSS

$custom: #101131;
$custom-light: #524e69;
$custom-dark: #000000;

JSON

{
  "hex": "#101131",
  "rgb": {
    "r": 16,
    "g": 17,
    "b": 49
  },
  "hsl": {
    "h": 238.182,
    "s": 50.769,
    "l": 12.745
  },
  "oklch": {
    "l": 0.1987,
    "c": 0.06222,
    "h": 277.8
  },
  "luminance": 0.00733
}

Semantic roles & 50–950 ramp

primary

#101131

secondary

#6A6933

accent

#D64EDA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #101131

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

Preview Lab → · Contrast checker → · Palette generator →