#100C43#100C43

#100C43 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.8% C 0.098 H 276.8°. Best body text is #FFFFFF at 18.17:1 contrast (WCAG AA passes).

Color values

HEX	#100C43
RGB	rgb(16, 12, 67)
HSL	hsl(244, 70%, 15%)
HSV	hsv(244, 82%, 26%)
CMYK	cmyk(76.1%, 82.1%, 0%, 73.7%)
CIE-LAB	lab(7.03, 22.06, -33.72)
CIE-LCH	lch(7.03, 40.29, 303.19°)
OKLab	oklab(20.77% 0.0116 -0.0976)
OKLCH	oklch(20.77% 0.098 276.8)
XYZ	xyz(1.3579, 0.7782, 5.3878)
Luminance	0.0078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C43 #3F430C

analogous

#0C2343 #100C43 #2B0C43

triadic

#100C43 #43100C #0C4310

tetradic

#100C43 #430C23 #3F430C #0C432B

square

#100C43 #430C23 #3F430C #0C432B

split-complementary

#100C43 #432B0C #23430C

monochromatic

#06051A #06051A #100C43 #1C1577 #291FAB

Accessibility & contrast

On white

18.17

#100C43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#100C43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C43

18.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C43	#FFFFFF	#000000	##FFFFFF
##100C43	1.00	18.17	1.16	18.17
#FFFFFF	18.17	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001845

Deuteranopia (green-blind)

#001342

Tritanopia (blue-blind)

#001C26

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #100c43;
/* rgb */ color: rgb(16, 12, 67);
/* oklch */ color: oklch(20.8% 0.098 276.8);

Tailwind

colors: {
  custom: {
    50: '#574b78',
    500: '#100c43',
    950: '#000000',
  },
}

SCSS

$custom: #100c43;
$custom-light: #574b78;
$custom-dark: #000000;

JSON

{
  "hex": "#100c43",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 67
  },
  "hsl": {
    "h": 244.364,
    "s": 69.62,
    "l": 15.49
  },
  "oklch": {
    "l": 0.20773,
    "c": 0.09831,
    "h": 276.8
  },
  "luminance": 0.00778
}

Semantic roles & 50–950 ramp

primary

#100C43

secondary

#797F2C

accent

#EC3BE0

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040109

muted

#79777B

Preview Lab

Preview with #100C43

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

Preview Lab → · Contrast checker → · Palette generator →