#101F53#101F53

#101F53 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.3% C 0.097 H 267.1°. Best body text is #FFFFFF at 15.64:1 contrast (WCAG AA passes).

Color values

HEX	#101F53
RGB	rgb(16, 31, 83)
HSL	hsl(227, 68%, 19%)
HSV	hsv(227, 81%, 33%)
CMYK	cmyk(80.7%, 62.7%, 0%, 67.5%)
CIE-LAB	lab(13.91, 14.95, -33.55)
CIE-LCH	lch(13.91, 36.73, 294.02°)
OKLab	oklab(26.35% -0.0049 -0.0968)
OKLCH	oklch(26.35% 0.097 267.1)
XYZ	xyz(2.2645, 1.7144, 8.3935)
Luminance	0.0171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F53 #534410

analogous

#104153 #101F53 #231053

triadic

#101F53 #53101F #1F5310

tetradic

#101F53 #531041 #534410 #105323

square

#101F53 #531041 #534410 #105323

split-complementary

#101F53 #532310 #415310

monochromatic

#050A1A #060C20 #101F53 #1A3286 #2445BA

Accessibility & contrast

On white

15.64

#101F53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#101F53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F53

15.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F53	#FFFFFF	#000000	##FFFFFF
##101F53	1.00	15.64	1.34	15.64
#FFFFFF	15.64	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002755

Deuteranopia (green-blind)

#002052

Tritanopia (blue-blind)

#002C35

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #101f53;
/* rgb */ color: rgb(16, 31, 83);
/* oklch */ color: oklch(26.3% 0.097 267.1);

Tailwind

colors: {
  custom: {
    50: '#5a5a84',
    500: '#101f53',
    950: '#000000',
  },
}

SCSS

$custom: #101f53;
$custom-light: #5a5a84;
$custom-dark: #000000;

JSON

{
  "hex": "#101f53",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 83
  },
  "hsl": {
    "h": 226.567,
    "s": 67.677,
    "l": 19.412
  },
  "oklch": {
    "l": 0.26345,
    "c": 0.0969,
    "h": 267.1
  },
  "luminance": 0.01715
}

Semantic roles & 50–950 ramp

primary

#101F53

secondary

#8D7832

accent

#C43DEB

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #101F53

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

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