#100A45#100A45

#100A45 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.104 H 276.9°. Best body text is #FFFFFF at 18.24:1 contrast (WCAG AA passes).

Color values

HEX	#100A45
RGB	rgb(16, 10, 69)
HSL	hsl(246, 75%, 15%)
HSV	hsv(246, 86%, 27%)
CMYK	cmyk(76.8%, 85.5%, 0%, 72.9%)
CIE-LAB	lab(6.84, 24.02, -35.45)
CIE-LCH	lch(6.84, 42.82, 304.12°)
OKLab	oklab(20.7% 0.0124 -0.1028)
OKLCH	oklch(20.7% 0.104 276.9)
XYZ	xyz(1.3961, 0.7568, 5.7016)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100A45 #3F450A

analogous

#0A2145 #100A45 #2D0A45

triadic

#100A45 #45100A #0A4510

tetradic

#100A45 #450A21 #3F450A #0A452D

square

#100A45 #450A21 #3F450A #0A452D

split-complementary

#100A45 #452D0A #21450A

monochromatic

#06041B #06041B #100A45 #1C127A #2919B0

Accessibility & contrast

On white

18.24

#100A45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#100A45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100A45

18.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100A45	#FFFFFF	#000000	##FFFFFF
##100A45	1.00	18.24	1.15	18.24
#FFFFFF	18.24	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001847

Deuteranopia (green-blind)

#001344

Tritanopia (blue-blind)

#001B27

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #100a45;
/* rgb */ color: rgb(16, 10, 69);
/* oklch */ color: oklch(20.7% 0.104 276.9);

Tailwind

colors: {
  custom: {
    50: '#584a79',
    500: '#100a45',
    950: '#000000',
  },
}

SCSS

$custom: #100a45;
$custom-light: #584a79;
$custom-dark: #000000;

JSON

{
  "hex": "#100a45",
  "rgb": {
    "r": 16,
    "g": 10,
    "b": 69
  },
  "hsl": {
    "h": 246.102,
    "s": 74.684,
    "l": 15.49
  },
  "oklch": {
    "l": 0.20695,
    "c": 0.10351,
    "h": 276.9
  },
  "luminance": 0.00757
}

Semantic roles & 50–950 ramp

primary

#100A45

secondary

#798229

accent

#F136DE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040109

muted

#79777B

Preview Lab

Preview with #100A45

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

Preview Lab → · Contrast checker → · Palette generator →