#100E51#100E51

#100E51 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.8% C 0.116 H 273.5°. Best body text is #FFFFFF at 17.45:1 contrast (WCAG AA passes).

Color values

HEX	#100E51
RGB	rgb(16, 14, 81)
HSL	hsl(242, 71%, 19%)
HSV	hsv(242, 83%, 32%)
CMYK	cmyk(80.2%, 82.7%, 0%, 68.2%)
CIE-LAB	lab(9.14, 26.26, -40.01)
CIE-LCH	lch(9.14, 47.85, 303.28°)
OKLab	oklab(22.8% 0.0071 -0.1157)
OKLCH	oklch(22.8% 0.116 273.5)
XYZ	xyz(1.8554, 1.0181, 7.8817)
Luminance	0.0102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100E51 #4F510E

analogous

#0E2D51 #100E51 #310E51

triadic

#100E51 #51100E #0E5110

tetradic

#100E51 #510E2D #4F510E #0E5131

square

#100E51 #510E2D #4F510E #0E5131

split-complementary

#100E51 #51310E #2D510E

monochromatic

#05051A #06051D #100E51 #1A1785 #2520B9

Accessibility & contrast

On white

17.45

#100E51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#100E51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100E51

17.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100E51	#FFFFFF	#000000	##FFFFFF
##100E51	1.00	17.45	1.20	17.45
#FFFFFF	17.45	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D53

Deuteranopia (green-blind)

#001750

Tritanopia (blue-blind)

#00222F

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #100e51;
/* rgb */ color: rgb(16, 14, 81);
/* oklch */ color: oklch(22.8% 0.116 273.5);

Tailwind

colors: {
  custom: {
    50: '#5b4d83',
    500: '#100e51',
    950: '#000000',
  },
}

SCSS

$custom: #100e51;
$custom-light: #5b4d83;
$custom-dark: #000000;

JSON

{
  "hex": "#100e51",
  "rgb": {
    "r": 16,
    "g": 14,
    "b": 81
  },
  "hsl": {
    "h": 241.791,
    "s": 70.526,
    "l": 18.627
  },
  "oklch": {
    "l": 0.22803,
    "c": 0.11596,
    "h": 273.5
  },
  "luminance": 0.01018
}

Semantic roles & 50–950 ramp

primary

#100E51

secondary

#898C2F

accent

#ED3AE8

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04010B

muted

#79777C

Preview Lab

Preview with #100E51

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

Preview Lab → · Contrast checker → · Palette generator →