#100A41#100A41

#100A41 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.2% C 0.098 H 277.9°. Best body text is #FFFFFF at 18.39:1 contrast (WCAG AA passes).

Color values

HEX	#100A41
RGB	rgb(16, 10, 65)
HSL	hsl(247, 73%, 15%)
HSV	hsv(247, 85%, 25%)
CMYK	cmyk(75.4%, 84.6%, 0%, 74.5%)
CIE-LAB	lab(6.40, 22.27, -33.33)
CIE-LCH	lch(6.40, 40.08, 303.76°)
OKLab	oklab(20.2% 0.0135 -0.0969)
OKLCH	oklch(20.2% 0.098 277.9)
XYZ	xyz(1.2761, 0.7088, 5.0696)
Luminance	0.0071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100A41 #3B410A

analogous

#0A2041 #100A41 #2B0A41

triadic

#100A41 #41100A #0A4110

tetradic

#100A41 #410A20 #3B410A #0A412B

square

#100A41 #410A20 #3B410A #0A412B

split-complementary

#100A41 #412B0A #20410A

monochromatic

#07041B #07041B #100A41 #1D1276 #2A1AAB

Accessibility & contrast

On white

18.39

#100A41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#100A41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100A41

18.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100A41	#FFFFFF	#000000	##FFFFFF
##100A41	1.00	18.39	1.14	18.39
#FFFFFF	18.39	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001643

Deuteranopia (green-blind)

#001240

Tritanopia (blue-blind)

#001A25

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #100a41;
/* rgb */ color: rgb(16, 10, 65);
/* oklch */ color: oklch(20.2% 0.098 277.9);

Tailwind

colors: {
  custom: {
    50: '#574a76',
    500: '#100a41',
    950: '#000000',
  },
}

SCSS

$custom: #100a41;
$custom-light: #574a76;
$custom-dark: #000000;

JSON

{
  "hex": "#100a41",
  "rgb": {
    "r": 16,
    "g": 10,
    "b": 65
  },
  "hsl": {
    "h": 246.545,
    "s": 73.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.20202,
    "c": 0.0978,
    "h": 277.9
  },
  "luminance": 0.00709
}

Semantic roles & 50–950 ramp

primary

#100A41

secondary

#757E29

accent

#F038DC

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100A41

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

Preview Lab → · Contrast checker → · Palette generator →