#10102C#10102C

#10102C is a very dark, muted blue. Relative luminance 0.007; OKLCH L 19.2% C 0.055 H 279.9°. Best body text is #FFFFFF at 18.54:1 contrast (WCAG AA passes).

Color values

HEX	#10102C
RGB	rgb(16, 16, 44)
HSL	hsl(240, 47%, 12%)
HSV	hsv(240, 64%, 17%)
CMYK	cmyk(63.6%, 63.6%, 0%, 82.7%)
CIE-LAB	lab(5.98, 9.17, -18.68)
CIE-LCH	lch(5.98, 20.80, 296.14°)
OKLab	oklab(19.18% 0.0094 -0.0543)
OKLCH	oklch(19.18% 0.055 279.9)
XYZ	xyz(0.8535, 0.6625, 2.4653)
Luminance	0.0066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.60

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10102C #2C2C10

analogous

#101E2C #10102C #1E102C

triadic

#10102C #2C1010 #102C10

tetradic

#10102C #2C101E #2C2C10 #102C1E

square

#10102C #2C101E #2C2C10 #102C1E

split-complementary

#10102C #2C1E10 #1E2C10

monochromatic

#080816 #080816 #10102C #202059 #313186

Accessibility & contrast

On white

18.54

#10102C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#10102C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10102C

18.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10102C	#FFFFFF	#000000	##FFFFFF
##10102C	1.00	18.54	1.13	18.54
#FFFFFF	18.54	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04142D

Deuteranopia (green-blind)

#02122B

Tritanopia (blue-blind)

#05161B

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #10102c;
/* rgb */ color: rgb(16, 16, 44);
/* oklch */ color: oklch(19.2% 0.055 279.9);

Tailwind

colors: {
  custom: {
    50: '#504e65',
    500: '#10102c',
    950: '#000000',
  },
}

SCSS

$custom: #10102c;
$custom-light: #504e65;
$custom-dark: #000000;

JSON

{
  "hex": "#10102c",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 44
  },
  "hsl": {
    "h": 240,
    "s": 46.667,
    "l": 11.765
  },
  "oklch": {
    "l": 0.19178,
    "c": 0.05508,
    "h": 279.9
  },
  "luminance": 0.00663
}

Semantic roles & 50–950 ramp

primary

#10102C

secondary

#656533

accent

#D651D6

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020105

muted

#78777A

Preview Lab

Preview with #10102C

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

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