#100B35#100B35

#100B35 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.0% C 0.078 H 281.3°. Best body text is #FFFFFF at 18.73:1 contrast (WCAG AA passes).

Color values

HEX	#100B35
RGB	rgb(16, 11, 53)
HSL	hsl(247, 66%, 13%)
HSV	hsv(247, 79%, 21%)
CMYK	cmyk(69.8%, 79.2%, 0%, 79.2%)
CIE-LAB	lab(5.48, 16.09, -26.15)
CIE-LCH	lch(5.48, 30.71, 301.60°)
OKLab	oklab(18.98% 0.0153 -0.0769)
OKLCH	oklch(18.98% 0.078 281.3)
XYZ	xyz(0.9758, 0.6065, 3.4331)
Luminance	0.0061 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight

#03012D

ΔE00 3.18

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B35 #30350B

analogous

#0B1B35 #100B35 #250B35

triadic

#100B35 #35100B #0B3510

tetradic

#100B35 #350B1B #30350B #0B3525

square

#100B35 #350B1B #30350B #0B3525

split-complementary

#100B35 #35250B #1B350B

monochromatic

#080519 #080519 #100B35 #1F1668 #2F209A

Accessibility & contrast

On white

18.73

#100B35 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#100B35 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B35

18.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B35	#FFFFFF	#000000	##FFFFFF
##100B35	1.00	18.73	1.12	18.73
#FFFFFF	18.73	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001436

Deuteranopia (green-blind)

#001034

Tritanopia (blue-blind)

#00161E

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #100b35;
/* rgb */ color: rgb(16, 11, 53);
/* oklch */ color: oklch(19.0% 0.078 281.3);

Tailwind

colors: {
  custom: {
    50: '#534b6d',
    500: '#100b35',
    950: '#000000',
  },
}

SCSS

$custom: #100b35;
$custom-light: #534b6d;
$custom-dark: #000000;

JSON

{
  "hex": "#100b35",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 53
  },
  "hsl": {
    "h": 247.143,
    "s": 65.625,
    "l": 12.549
  },
  "oklch": {
    "l": 0.1898,
    "c": 0.07842,
    "h": 281.3
  },
  "luminance": 0.00607
}

Semantic roles & 50–950 ramp

primary

#100B35

secondary

#69722A

accent

#E93FD4

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#030107

muted

#78777A

Preview Lab

Preview with #100B35

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

Preview Lab → · Contrast checker → · Palette generator →