#101F71#101F71

#101F71 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.5% C 0.141 H 267.6°. Best body text is #FFFFFF at 14.42:1 contrast (WCAG AA passes).

Color values

HEX	#101F71
RGB	rgb(16, 31, 113)
HSL	hsl(231, 75%, 25%)
HSV	hsv(231, 86%, 44%)
CMYK	cmyk(85.8%, 72.6%, 0%, 55.7%)
CIE-LAB	lab(16.90, 27.38, -48.52)
CIE-LCH	lch(16.90, 55.71, 299.44°)
OKLab	oklab(29.46% -0.0059 -0.1406)
OKLCH	oklch(29.46% 0.141 267.6)
XYZ	xyz(3.6833, 2.2819, 15.8659)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F71 #716210

analogous

#104F71 #101F71 #321071

triadic

#101F71 #71101F #1F7110

tetradic

#101F71 #71104F #716210 #107132

square

#101F71 #71104F #716210 #107132

split-complementary

#101F71 #713210 #4F7110

monochromatic

#04071B #08103B #101F71 #182EA7 #1F3CDC

Accessibility & contrast

On white

14.42

#101F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#101F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F71

14.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F71	#FFFFFF	#000000	##FFFFFF
##101F71	1.00	14.42	1.46	14.42
#FFFFFF	14.42	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E73

Deuteranopia (green-blind)

#002570

Tritanopia (blue-blind)

#003645

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #101f71;
/* rgb */ color: rgb(16, 31, 113);
/* oklch */ color: oklch(29.5% 0.141 267.6);

Tailwind

colors: {
  custom: {
    50: '#635a9b',
    500: '#101f71',
    950: '#000000',
  },
}

SCSS

$custom: #101f71;
$custom-light: #635a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#101f71",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 113
  },
  "hsl": {
    "h": 230.722,
    "s": 75.194,
    "l": 25.294
  },
  "oklch": {
    "l": 0.29464,
    "c": 0.14071,
    "h": 267.6
  },
  "luminance": 0.02282
}

Semantic roles & 50–950 ramp

primary

#101F71

secondary

#A99734

accent

#D536F2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #101F71

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

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