#101F66#101F66

#101F66 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.3% C 0.125 H 267.7°. Best body text is #FFFFFF at 14.90:1 contrast (WCAG AA passes).

Color values

HEX	#101F66
RGB	rgb(16, 31, 102)
HSL	hsl(230, 73%, 23%)
HSV	hsv(230, 84%, 40%)
CMYK	cmyk(84.3%, 69.6%, 0%, 60%)
CIE-LAB	lab(15.74, 22.95, -43.25)
CIE-LCH	lch(15.74, 48.96, 297.95°)
OKLab	oklab(28.27% -0.005 -0.1252)
OKLCH	oklch(28.27% 0.125 267.7)
XYZ	xyz(3.1011, 2.0491, 12.7999)
Luminance	0.0205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F66 #665710

analogous

#104A66 #101F66 #2C1066

triadic

#101F66 #66101F #1F6610

tetradic

#101F66 #66104A #665710 #10662C

square

#101F66 #66104A #665710 #10662C

split-complementary

#101F66 #662C10 #4A6610

monochromatic

#04081A #080F31 #101F66 #182F9B #213FD0

Accessibility & contrast

On white

14.90

#101F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#101F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F66

14.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F66	#FFFFFF	#000000	##FFFFFF
##101F66	1.00	14.90	1.41	14.90
#FFFFFF	14.90	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B68

Deuteranopia (green-blind)

#002365

Tritanopia (blue-blind)

#00323F

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #101f66;
/* rgb */ color: rgb(16, 31, 102);
/* oklch */ color: oklch(28.3% 0.125 267.7);

Tailwind

colors: {
  custom: {
    50: '#5f5a92',
    500: '#101f66',
    950: '#000000',
  },
}

SCSS

$custom: #101f66;
$custom-light: #5f5a92;
$custom-dark: #000000;

JSON

{
  "hex": "#101f66",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 102
  },
  "hsl": {
    "h": 229.535,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.28268,
    "c": 0.12531,
    "h": 267.7
  },
  "luminance": 0.02049
}

Semantic roles & 50–950 ramp

primary

#101F66

secondary

#9E8C33

accent

#D038F0

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#05030D

muted

#79787E

Preview Lab

Preview with #101F66

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

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