#101B2F#101B2F

#101B2F is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.3% C 0.042 H 261.6°. Best body text is #FFFFFF at 17.22:1 contrast (WCAG AA passes).

Color values

HEX	#101B2F
RGB	rgb(16, 27, 47)
HSL	hsl(219, 49%, 12%)
HSV	hsv(219, 66%, 18%)
CMYK	cmyk(66%, 42.6%, 0%, 81.6%)
CIE-LAB	lab(9.79, 2.56, -14.86)
CIE-LCH	lch(9.79, 15.08, 279.76°)
OKLab	oklab(22.31% -0.0062 -0.042)
OKLCH	oklch(22.31% 0.042 261.6)
XYZ	xyz(1.1185, 1.0992, 2.8420)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B2F #2F2410

analogous

#102A2F #101B2F #15102F

triadic

#101B2F #2F101B #1B2F10

tetradic

#101B2F #2F102A #2F2410 #102F15

square

#101B2F #2F102A #2F2410 #102F15

split-complementary

#101B2F #2F1510 #2A2F10

monochromatic

#080D17 #080D17 #101B2F #20355D #2F4F8A

Accessibility & contrast

On white

17.22

#101B2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#101B2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B2F

17.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B2F	#FFFFFF	#000000	##FFFFFF
##101B2F	1.00	17.22	1.22	17.22
#FFFFFF	17.22	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#131D30

Deuteranopia (green-blind)

#0F1A2F

Tritanopia (blue-blind)

#021F22

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #101b2f;
/* rgb */ color: rgb(16, 27, 47);
/* oklch */ color: oklch(22.3% 0.042 261.6);

Tailwind

colors: {
  custom: {
    50: '#515667',
    500: '#101b2f',
    950: '#000000',
  },
}

SCSS

$custom: #101b2f;
$custom-light: #515667;
$custom-dark: #000000;

JSON

{
  "hex": "#101b2f",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 47
  },
  "hsl": {
    "h": 218.71,
    "s": 49.206,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22311,
    "c": 0.04241,
    "h": 261.6
  },
  "luminance": 0.01099
}

Semantic roles & 50–950 ramp

primary

#101B2F

secondary

#685533

accent

#A84FD9

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #101B2F

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

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