#100A36#100A36

#100A36 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.9% C 0.081 H 281.4°. Best body text is #FFFFFF at 18.77:1 contrast (WCAG AA passes).

Color values

HEX	#100A36
RGB	rgb(16, 10, 54)
HSL	hsl(248, 69%, 13%)
HSV	hsv(248, 81%, 21%)
CMYK	cmyk(70.4%, 81.5%, 0%, 78.8%)
CIE-LAB	lab(5.36, 17.04, -27.07)
CIE-LCH	lch(5.36, 31.99, 302.19°)
OKLab	oklab(18.9% 0.0162 -0.0798)
OKLCH	oklch(18.9% 0.081 281.4)
XYZ	xyz(0.9879, 0.5935, 3.5518)
Luminance	0.0059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100A36 #30360A

analogous

#0A1A36 #100A36 #260A36

triadic

#100A36 #36100A #0A3610

tetradic

#100A36 #360A1A #30360A #0A3626

square

#100A36 #360A1A #30360A #0A3626

split-complementary

#100A36 #36260A #1A360A

monochromatic

#08051A #08051A #100A36 #1F146A #2F1D9D

Accessibility & contrast

On white

18.77

#100A36 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#100A36 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100A36

18.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100A36	#FFFFFF	#000000	##FFFFFF
##100A36	1.00	18.77	1.12	18.77
#FFFFFF	18.77	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001337

Deuteranopia (green-blind)

#001035

Tritanopia (blue-blind)

#00161E

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #100a36;
/* rgb */ color: rgb(16, 10, 54);
/* oklch */ color: oklch(18.9% 0.081 281.4);

Tailwind

colors: {
  custom: {
    50: '#534a6d',
    500: '#100a36',
    950: '#000000',
  },
}

SCSS

$custom: #100a36;
$custom-light: #534a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#100a36",
  "rgb": {
    "r": 16,
    "g": 10,
    "b": 54
  },
  "hsl": {
    "h": 248.182,
    "s": 68.75,
    "l": 12.549
  },
  "oklch": {
    "l": 0.18904,
    "c": 0.08141,
    "h": 281.4
  },
  "luminance": 0.00594
}

Semantic roles & 50–950 ramp

primary

#100A36

secondary

#697328

accent

#EC3CD4

background

#F4F4F6

surface

#E8E7EB

border

#C4C3C6

text

#030107

muted

#78777A

Preview Lab

Preview with #100A36

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

Preview Lab → · Contrast checker → · Palette generator →