#101C8D#101C8D

#101C8D is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.3% C 0.180 H 267.3°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#101C8D
RGB	rgb(16, 28, 141)
HSL	hsl(234, 80%, 31%)
HSV	hsv(234, 89%, 55%)
CMYK	cmyk(88.7%, 80.1%, 0%, 44.7%)
CIE-LAB	lab(19.49, 39.67, -62.03)
CIE-LCH	lch(19.49, 73.63, 302.60°)
OKLab	oklab(32.27% -0.0085 -0.1798)
OKLCH	oklch(32.27% 0.18 267.3)
XYZ	xyz(5.4350, 2.8631, 25.4603)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C8D #8D8110

analogous

#105A8D #101C8D #42108D

triadic

#101C8D #8D101C #1C8D10

tetradic

#101C8D #8D105A #8D8110 #108D42

square

#101C8D #8D105A #8D8110 #108D42

split-complementary

#101C8D #8D4210 #5A8D10

monochromatic

#04061F #0A1156 #101C8D #1627C4 #3042E7

Accessibility & contrast

On white

13.35

#101C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#101C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C8D

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C8D	#FFFFFF	#000000	##FFFFFF
##101C8D	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003590

Deuteranopia (green-blind)

#00298B

Tritanopia (blue-blind)

#003F54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #101c8d;
/* rgb */ color: rgb(16, 28, 141);
/* oklch */ color: oklch(32.3% 0.180 267.3);

Tailwind

colors: {
  custom: {
    50: '#6b5ab0',
    500: '#101c8d',
    950: '#000000',
  },
}

SCSS

$custom: #101c8d;
$custom-light: #6b5ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#101c8d",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 141
  },
  "hsl": {
    "h": 234.24,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32266,
    "c": 0.17999,
    "h": 267.3
  },
  "luminance": 0.02864
}

Semantic roles & 50–950 ramp

primary

#101C8D

secondary

#C2B437

accent

#E332F6

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #101C8D

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

Preview Lab → · Contrast checker → · Palette generator →