#101C66#101C66

#101C66 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.7% C 0.129 H 268.5°. Best body text is #FFFFFF at 15.22:1 contrast (WCAG AA passes).

Color values

HEX	#101C66
RGB	rgb(16, 28, 102)
HSL	hsl(232, 73%, 23%)
HSV	hsv(232, 84%, 40%)
CMYK	cmyk(84.3%, 72.5%, 0%, 60%)
CIE-LAB	lab(14.95, 25.07, -44.55)
CIE-LCH	lch(14.95, 51.11, 299.37°)
OKLab	oklab(27.69% -0.0034 -0.129)
OKLCH	oklch(27.69% 0.129 268.5)
XYZ	xyz(3.0264, 1.8996, 12.7750)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C66 #665A10

analogous

#104766 #101C66 #2F1066

triadic

#101C66 #66101C #1C6610

tetradic

#101C66 #661047 #665A10 #10662F

square

#101C66 #661047 #665A10 #10662F

split-complementary

#101C66 #662F10 #476610

monochromatic

#04071A #080D31 #101C66 #182B9B #2139D0

Accessibility & contrast

On white

15.22

#101C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#101C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C66

15.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C66	#FFFFFF	#000000	##FFFFFF
##101C66	1.00	15.22	1.38	15.22
#FFFFFF	15.22	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A68

Deuteranopia (green-blind)

#002165

Tritanopia (blue-blind)

#00303E

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #101c66;
/* rgb */ color: rgb(16, 28, 102);
/* oklch */ color: oklch(27.7% 0.129 268.5);

Tailwind

colors: {
  custom: {
    50: '#605892',
    500: '#101c66',
    950: '#000000',
  },
}

SCSS

$custom: #101c66;
$custom-light: #605892;
$custom-dark: #000000;

JSON

{
  "hex": "#101c66",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 102
  },
  "hsl": {
    "h": 231.628,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.27691,
    "c": 0.12907,
    "h": 268.5
  },
  "luminance": 0.019
}

Semantic roles & 50–950 ramp

primary

#101C66

secondary

#9E8F33

accent

#D638F0

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#05030D

muted

#79787E

Preview Lab

Preview with #101C66

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

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