#10102F#10102F

#10102F is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.4% C 0.060 H 279.2°. Best body text is #FFFFFF at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#10102F
RGB	rgb(16, 16, 47)
HSL	hsl(240, 49%, 12%)
HSV	hsv(240, 66%, 18%)
CMYK	cmyk(66%, 66%, 0%, 81.6%)
CIE-LAB	lab(6.20, 10.57, -20.58)
CIE-LCH	lch(6.20, 23.13, 297.20°)
OKLab	oklab(19.45% 0.0097 -0.0596)
OKLCH	oklch(19.45% 0.06 279.2)
XYZ	xyz(0.9119, 0.6859, 2.7731)
Luminance	0.0069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.63

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10102F #2F2F10

analogous

#10202F #10102F #20102F

triadic

#10102F #2F1010 #102F10

tetradic

#10102F #2F1020 #2F2F10 #102F20

square

#10102F #2F1020 #2F2F10 #102F20

split-complementary

#10102F #2F2010 #202F10

monochromatic

#080817 #080817 #10102F #20205D #2F2F8A

Accessibility & contrast

On white

18.47

#10102F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#10102F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10102F

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10102F	#FFFFFF	#000000	##FFFFFF
##10102F	1.00	18.47	1.14	18.47
#FFFFFF	18.47	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011530

Deuteranopia (green-blind)

#00132E

Tritanopia (blue-blind)

#03171D

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #10102f;
/* rgb */ color: rgb(16, 16, 47);
/* oklch */ color: oklch(19.4% 0.060 279.2);

Tailwind

colors: {
  custom: {
    50: '#514e68',
    500: '#10102f',
    950: '#000000',
  },
}

SCSS

$custom: #10102f;
$custom-light: #514e68;
$custom-dark: #000000;

JSON

{
  "hex": "#10102f",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 47
  },
  "hsl": {
    "h": 240,
    "s": 49.206,
    "l": 12.353
  },
  "oklch": {
    "l": 0.19449,
    "c": 0.06042,
    "h": 279.2
  },
  "luminance": 0.00686
}

Semantic roles & 50–950 ramp

primary

#10102F

secondary

#686833

accent

#D94FD9

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #10102F

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

Preview Lab → · Contrast checker → · Palette generator →