#100C50#100C50

#100C50 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.4% C 0.117 H 274.1°. Best body text is #FFFFFF at 17.64:1 contrast (WCAG AA passes).

Color values

HEX	#100C50
RGB	rgb(16, 12, 80)
HSL	hsl(244, 74%, 18%)
HSV	hsv(244, 85%, 31%)
CMYK	cmyk(80%, 85%, 0%, 68.6%)
CIE-LAB	lab(8.59, 27.12, -40.24)
CIE-LCH	lch(8.59, 48.52, 303.98°)
OKLab	oklab(22.38% 0.0083 -0.1164)
OKLCH	oklch(22.38% 0.117 274.1)
XYZ	xyz(1.7926, 0.9521, 7.6772)
Luminance	0.0095 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C50 #4C500C

analogous

#0C2A50 #100C50 #320C50

triadic

#100C50 #50100C #0C5010

tetradic

#100C50 #500C2A #4C500C #0C5032

square

#100C50 #500C2A #4C500C #0C5032

split-complementary

#100C50 #50320C #2A500C

monochromatic

#05041B #05041B #100C50 #1B1485 #251CBA

Accessibility & contrast

On white

17.64

#100C50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#100C50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C50

17.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C50	#FFFFFF	#000000	##FFFFFF
##100C50	1.00	17.64	1.19	17.64
#FFFFFF	17.64	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C52

Deuteranopia (green-blind)

#00154F

Tritanopia (blue-blind)

#00212E

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #100c50;
/* rgb */ color: rgb(16, 12, 80);
/* oklch */ color: oklch(22.4% 0.117 274.1);

Tailwind

colors: {
  custom: {
    50: '#5b4c82',
    500: '#100c50',
    950: '#000000',
  },
}

SCSS

$custom: #100c50;
$custom-light: #5b4c82;
$custom-dark: #000000;

JSON

{
  "hex": "#100c50",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 80
  },
  "hsl": {
    "h": 243.529,
    "s": 73.913,
    "l": 18.039
  },
  "oklch": {
    "l": 0.22375,
    "c": 0.11669,
    "h": 274.1
  },
  "luminance": 0.00952
}

Semantic roles & 50–950 ramp

primary

#100C50

secondary

#868B2C

accent

#F137E6

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04010A

muted

#79777C

Preview Lab

Preview with #100C50

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

Preview Lab → · Contrast checker → · Palette generator →