#101F42#101F42

#101F42 is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 24.8% C 0.069 H 264.5°. Best body text is #FFFFFF at 16.20:1 contrast (WCAG AA passes).

Color values

HEX	#101F42
RGB	rgb(16, 31, 66)
HSL	hsl(222, 61%, 16%)
HSV	hsv(222, 76%, 26%)
CMYK	cmyk(75.8%, 53%, 0%, 74.1%)
CIE-LAB	lab(12.50, 7.57, -24.12)
CIE-LCH	lch(12.50, 25.27, 287.42°)
OKLab	oklab(24.83% -0.0067 -0.069)
OKLCH	oklch(24.83% 0.069 264.5)
XYZ	xyz(1.6867, 1.4833, 5.3506)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F42 #423310

analogous

#103842 #101F42 #1A1042

triadic

#101F42 #42101F #1F4210

tetradic

#101F42 #421038 #423310 #10421A

square

#101F42 #421038 #423310 #10421A

split-complementary

#101F42 #421A10 #384210

monochromatic

#060C19 #060C19 #101F42 #1C3673 #284DA5

Accessibility & contrast

On white

16.20

#101F42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#101F42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F42

16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F42	#FFFFFF	#000000	##FFFFFF
##101F42	1.00	16.20	1.30	16.20
#FFFFFF	16.20	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D2343

Deuteranopia (green-blind)

#041E41

Tritanopia (blue-blind)

#00272D

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101f42;
/* rgb */ color: rgb(16, 31, 66);
/* oklch */ color: oklch(24.8% 0.069 264.5);

Tailwind

colors: {
  custom: {
    50: '#555a76',
    500: '#101f42',
    950: '#000000',
  },
}

SCSS

$custom: #101f42;
$custom-light: #555a76;
$custom-dark: #000000;

JSON

{
  "hex": "#101f42",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 66
  },
  "hsl": {
    "h": 222,
    "s": 60.976,
    "l": 16.078
  },
  "oklch": {
    "l": 0.24831,
    "c": 0.06936,
    "h": 264.5
  },
  "luminance": 0.01483
}

Semantic roles & 50–950 ramp

primary

#101F42

secondary

#7C6632

accent

#B444E4

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #101F42

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

Preview Lab → · Contrast checker → · Palette generator →