#101E2B#101E2B

#101E2B is a very dark, muted cyan. Relative luminance 0.012; OKLCH L 22.9% C 0.032 H 247.6°. Best body text is #FFFFFF at 16.90:1 contrast (WCAG AA passes).

Color values

HEX	#101E2B
RGB	rgb(16, 30, 43)
HSL	hsl(209, 46%, 12%)
HSV	hsv(209, 63%, 17%)
CMYK	cmyk(62.8%, 30.2%, 0%, 83.1%)
CIE-LAB	lab(10.65, -1.31, -10.59)
CIE-LCH	lch(10.65, 10.67, 262.94°)
OKLab	oklab(22.91% -0.0122 -0.0296)
OKLCH	oklch(22.91% 0.032 247.6)
XYZ	xyz(1.1139, 1.2130, 2.4605)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101E2B #2B1D10

analogous

#102B2B #101E2B #10112B

triadic

#101E2B #2B101E #1E2B10

tetradic

#101E2B #2B102B #2B1D10 #112B10

square

#101E2B #2B102B #2B1D10 #112B10

split-complementary

#101E2B #2B1011 #2B2B10

monochromatic

#081016 #081016 #101E2B #213D58 #315C84

Accessibility & contrast

On white

16.90

#101E2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#101E2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101E2B

16.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101E2B	#FFFFFF	#000000	##FFFFFF
##101E2B	1.00	16.90	1.24	16.90
#FFFFFF	16.90	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191E2C

Deuteranopia (green-blind)

#151C2B

Tritanopia (blue-blind)

#042122

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #101e2b;
/* rgb */ color: rgb(16, 30, 43);
/* oklch */ color: oklch(22.9% 0.032 247.6);

Tailwind

colors: {
  custom: {
    50: '#505964',
    500: '#101e2b',
    950: '#000000',
  },
}

SCSS

$custom: #101e2b;
$custom-light: #505964;
$custom-dark: #000000;

JSON

{
  "hex": "#101e2b",
  "rgb": {
    "r": 16,
    "g": 30,
    "b": 43
  },
  "hsl": {
    "h": 208.889,
    "s": 45.763,
    "l": 11.569
  },
  "oklch": {
    "l": 0.22909,
    "c": 0.032,
    "h": 247.6
  },
  "luminance": 0.01213
}

Semantic roles & 50–950 ramp

primary

#101E2B

secondary

#644B33

accent

#9152D5

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #101E2B

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

Preview Lab → · Contrast checker → · Palette generator →