#101F83#101F83

#101F83 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.5% C 0.165 H 267.3°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#101F83
RGB	rgb(16, 31, 131)
HSL	hsl(232, 78%, 29%)
HSV	hsv(232, 88%, 51%)
CMYK	cmyk(87.8%, 76.3%, 0%, 48.6%)
CIE-LAB	lab(18.92, 34.28, -56.69)
CIE-LCH	lch(18.92, 66.25, 301.16°)
OKLab	oklab(31.52% -0.0078 -0.1643)
OKLCH	oklch(31.52% 0.165 267.3)
XYZ	xyz(4.7990, 2.7282, 21.7420)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F83 #837410

analogous

#105983 #101F83 #3B1083

triadic

#101F83 #83101F #1F8310

tetradic

#101F83 #831059 #837410 #10833B

square

#101F83 #831059 #837410 #10833B

split-complementary

#101F83 #833B10 #598310

monochromatic

#03061B #09124C #101F83 #172CBA #2941E5

Accessibility & contrast

On white

13.59

#101F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#101F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F83

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F83	#FFFFFF	#000000	##FFFFFF
##101F83	1.00	13.59	1.55	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003486

Deuteranopia (green-blind)

#002881

Tritanopia (blue-blind)

#003C4F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #101f83;
/* rgb */ color: rgb(16, 31, 131);
/* oklch */ color: oklch(31.5% 0.165 267.3);

Tailwind

colors: {
  custom: {
    50: '#685ba8',
    500: '#101f83',
    950: '#000000',
  },
}

SCSS

$custom: #101f83;
$custom-light: #685ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#101f83",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 131
  },
  "hsl": {
    "h": 232.174,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31516,
    "c": 0.16454,
    "h": 267.3
  },
  "luminance": 0.02729
}

Semantic roles & 50–950 ramp

primary

#101F83

secondary

#B9A836

accent

#DB33F5

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#070410

muted

#7A797F

Preview Lab

Preview with #101F83

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

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