#101B28#101B28

#101B28 is a very dark, muted cyan. Relative luminance 0.010; OKLCH L 21.9% C 0.030 H 253.2°. Best body text is #FFFFFF at 17.36:1 contrast (WCAG AA passes).

Color values

HEX	#101B28
RGB	rgb(16, 27, 40)
HSL	hsl(213, 43%, 11%)
HSV	hsv(213, 60%, 16%)
CMYK	cmyk(60%, 32.5%, 0%, 84.3%)
CIE-LAB	lab(9.38, -0.25, -10.36)
CIE-LCH	lch(9.38, 10.36, 268.61°)
OKLab	oklab(21.85% -0.0087 -0.0289)
OKLCH	oklch(21.85% 0.03 253.2)
XYZ	xyz(0.9885, 1.0472, 2.1571)
Luminance	0.0105 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B28 #281D10

analogous

#102728 #101B28 #111028

triadic

#101B28 #28101B #1B2810

tetradic

#101B28 #281027 #281D10 #102811

square

#101B28 #281027 #281D10 #102811

split-complementary

#101B28 #281110 #272810

monochromatic

#090F16 #090F16 #101B28 #213954 #33567F

Accessibility & contrast

On white

17.36

#101B28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#101B28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B28

17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B28	#FFFFFF	#000000	##FFFFFF
##101B28	1.00	17.36	1.21	17.36
#FFFFFF	17.36	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161C29

Deuteranopia (green-blind)

#131928

Tritanopia (blue-blind)

#061E1F

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #101b28;
/* rgb */ color: rgb(16, 27, 40);
/* oklch */ color: oklch(21.9% 0.030 253.2);

Tailwind

colors: {
  custom: {
    50: '#505762',
    500: '#101b28',
    950: '#000000',
  },
}

SCSS

$custom: #101b28;
$custom-light: #505762;
$custom-dark: #000000;

JSON

{
  "hex": "#101b28",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 40
  },
  "hsl": {
    "h": 212.5,
    "s": 42.857,
    "l": 10.98
  },
  "oklch": {
    "l": 0.21853,
    "c": 0.03023,
    "h": 253.2
  },
  "luminance": 0.01047
}

Semantic roles & 50–950 ramp

primary

#101B28

secondary

#604C34

accent

#9955D3

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020305

muted

#787879

Preview Lab

Preview with #101B28

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

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