#101B33#101B33

#101B33 is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.6% C 0.050 H 264.2°. Best body text is #FFFFFF at 17.12:1 contrast (WCAG AA passes).

Color values

HEX	#101B33
RGB	rgb(16, 27, 51)
HSL	hsl(221, 52%, 13%)
HSV	hsv(221, 69%, 20%)
CMYK	cmyk(68.6%, 47.1%, 0%, 80%)
CIE-LAB	lab(10.05, 4.23, -17.35)
CIE-LCH	lch(10.05, 17.86, 283.69°)
OKLab	oklab(22.6% -0.005 -0.0492)
OKLCH	oklch(22.6% 0.05 264.2)
XYZ	xyz(1.2030, 1.1329, 3.2866)
Luminance	0.0113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B33 #332810

analogous

#102C33 #101B33 #161033

triadic

#101B33 #33101B #1B3310

tetradic

#101B33 #33102C #332810 #103316

square

#101B33 #33102C #332810 #103316

split-complementary

#101B33 #331610 #2C3310

monochromatic

#070C17 #070C17 #101B33 #1F3462 #2D4C90

Accessibility & contrast

On white

17.12

#101B33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#101B33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B33

17.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B33	#FFFFFF	#000000	##FFFFFF
##101B33	1.00	17.12	1.23	17.12
#FFFFFF	17.12	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#111D34

Deuteranopia (green-blind)

#0C1A32

Tritanopia (blue-blind)

#002024

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #101b33;
/* rgb */ color: rgb(16, 27, 51);
/* oklch */ color: oklch(22.6% 0.050 264.2);

Tailwind

colors: {
  custom: {
    50: '#52566b',
    500: '#101b33',
    950: '#000000',
  },
}

SCSS

$custom: #101b33;
$custom-light: #52566b;
$custom-dark: #000000;

JSON

{
  "hex": "#101b33",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 51
  },
  "hsl": {
    "h": 221.143,
    "s": 52.239,
    "l": 13.137
  },
  "oklch": {
    "l": 0.22599,
    "c": 0.0495,
    "h": 264.2
  },
  "luminance": 0.01133
}

Semantic roles & 50–950 ramp

primary

#101B33

secondary

#6C5A32

accent

#AF4CDC

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #101B33

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

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