#101B27#101B27

#101B27 is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.8% C 0.029 H 251.3°. Best body text is #FFFFFF at 17.38:1 contrast (WCAG AA passes).

Color values

HEX	#101B27
RGB	rgb(16, 27, 39)
HSL	hsl(211, 42%, 11%)
HSV	hsv(211, 59%, 15%)
CMYK	cmyk(59%, 30.8%, 0%, 84.7%)
CIE-LAB	lab(9.32, -0.64, -9.71)
CIE-LCH	lch(9.32, 9.73, 266.25°)
OKLab	oklab(21.79% -0.0091 -0.0271)
OKLCH	oklch(21.79% 0.029 251.3)
XYZ	xyz(0.9717, 1.0404, 2.0687)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B27 #271C10

analogous

#102627 #101B27 #101027

triadic

#101B27 #27101B #1B2710

tetradic

#101B27 #271026 #271C10 #102710

square

#101B27 #271026 #271C10 #102710

split-complementary

#101B27 #271010 #262710

monochromatic

#090F16 #090F16 #101B27 #223952 #34577E

Accessibility & contrast

On white

17.38

#101B27 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#101B27 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B27

17.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B27	#FFFFFF	#000000	##FFFFFF
##101B27	1.00	17.38	1.21	17.38
#FFFFFF	17.38	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161B28

Deuteranopia (green-blind)

#131927

Tritanopia (blue-blind)

#071E1F

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #101b27;
/* rgb */ color: rgb(16, 27, 39);
/* oklch */ color: oklch(21.8% 0.029 251.3);

Tailwind

colors: {
  custom: {
    50: '#4f5761',
    500: '#101b27',
    950: '#000000',
  },
}

SCSS

$custom: #101b27;
$custom-light: #4f5761;
$custom-dark: #000000;

JSON

{
  "hex": "#101b27",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 39
  },
  "hsl": {
    "h": 211.304,
    "s": 41.818,
    "l": 10.784
  },
  "oklch": {
    "l": 0.21792,
    "c": 0.02857,
    "h": 251.3
  },
  "luminance": 0.01041
}

Semantic roles & 50–950 ramp

primary

#101B27

secondary

#5F4A34

accent

#9756D2

background

#F4F5F5

surface

#E7E9E9

border

#C3C5C5

text

#020305

muted

#787879

Preview Lab

Preview with #101B27

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

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