#100A30#100A30

#100A30 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.2% C 0.072 H 283.9°. Best body text is #FFFFFF at 18.95:1 contrast (WCAG AA passes).

Color values

HEX	#100A30
RGB	rgb(16, 10, 48)
HSL	hsl(249, 66%, 11%)
HSV	hsv(249, 79%, 19%)
CMYK	cmyk(66.7%, 79.2%, 0%, 81.2%)
CIE-LAB	lab(4.88, 14.00, -23.41)
CIE-LCH	lch(4.88, 27.28, 300.87°)
OKLab	oklab(18.24% 0.0173 -0.0699)
OKLCH	oklch(18.24% 0.072 283.9)
XYZ	xyz(0.8556, 0.5406, 2.8550)
Luminance	0.0054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100A30 #2A300A

analogous

#0A1730 #100A30 #230A30

triadic

#100A30 #30100A #0A3010

tetradic

#100A30 #300A17 #2A300A #0A3023

square

#100A30 #300A17 #2A300A #0A3023

split-complementary

#100A30 #30230A #17300A

monochromatic

#080519 #080519 #100A30 #211563 #321F95

Accessibility & contrast

On white

18.95

#100A30 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100A30 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100A30

18.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100A30	#FFFFFF	#000000	##FFFFFF
##100A30	1.00	18.95	1.11	18.95
#FFFFFF	18.95	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001231

Deuteranopia (green-blind)

#000F2F

Tritanopia (blue-blind)

#03141B

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #100a30;
/* rgb */ color: rgb(16, 10, 48);
/* oklch */ color: oklch(18.2% 0.072 283.9);

Tailwind

colors: {
  custom: {
    50: '#514b68',
    500: '#100a30',
    950: '#000000',
  },
}

SCSS

$custom: #100a30;
$custom-light: #514b68;
$custom-dark: #000000;

JSON

{
  "hex": "#100a30",
  "rgb": {
    "r": 16,
    "g": 10,
    "b": 48
  },
  "hsl": {
    "h": 249.474,
    "s": 65.517,
    "l": 11.373
  },
  "oklch": {
    "l": 0.18242,
    "c": 0.07199,
    "h": 283.9
  },
  "luminance": 0.00541
}

Semantic roles & 50–950 ramp

primary

#100A30

secondary

#626D29

accent

#E83FCE

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #100A30

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

Preview Lab → · Contrast checker → · Palette generator →