#101F52#101F52

#101F52 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.3% C 0.095 H 267.0°. Best body text is #FFFFFF at 15.67:1 contrast (WCAG AA passes).

Color values

HEX	#101F52
RGB	rgb(16, 31, 82)
HSL	hsl(226, 67%, 19%)
HSV	hsv(226, 80%, 32%)
CMYK	cmyk(80.5%, 62.2%, 0%, 67.8%)
CIE-LAB	lab(13.82, 14.51, -33.01)
CIE-LCH	lch(13.82, 36.06, 293.73°)
OKLab	oklab(26.25% -0.0049 -0.0952)
OKLCH	oklch(26.25% 0.095 267)
XYZ	xyz(2.2261, 1.6991, 8.1916)
Luminance	0.0170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F52 #524310

analogous

#104052 #101F52 #221052

triadic

#101F52 #52101F #1F5210

tetradic

#101F52 #521040 #524310 #105222

square

#101F52 #521040 #524310 #105222

split-complementary

#101F52 #522210 #405210

monochromatic

#050A1A #060C1F #101F52 #1A3285 #2446B8

Accessibility & contrast

On white

15.67

#101F52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#101F52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F52

15.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F52	#FFFFFF	#000000	##FFFFFF
##101F52	1.00	15.67	1.34	15.67
#FFFFFF	15.67	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002654

Deuteranopia (green-blind)

#002051

Tritanopia (blue-blind)

#002C35

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #101f52;
/* rgb */ color: rgb(16, 31, 82);
/* oklch */ color: oklch(26.3% 0.095 267.0);

Tailwind

colors: {
  custom: {
    50: '#595a83',
    500: '#101f52',
    950: '#000000',
  },
}

SCSS

$custom: #101f52;
$custom-light: #595a83;
$custom-dark: #000000;

JSON

{
  "hex": "#101f52",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 82
  },
  "hsl": {
    "h": 226.364,
    "s": 67.347,
    "l": 19.216
  },
  "oklch": {
    "l": 0.2625,
    "c": 0.09535,
    "h": 267
  },
  "luminance": 0.01699
}

Semantic roles & 50–950 ramp

primary

#101F52

secondary

#8C7732

accent

#C33EEA

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #101F52

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

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