#181535#181535

#181535 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.9% C 0.061 H 284.5°. Best body text is #FFFFFF at 17.54:1 contrast (WCAG AA passes).

Color values

HEX	#181535
RGB	rgb(24, 21, 53)
HSL	hsl(246, 43%, 15%)
HSV	hsv(246, 60%, 21%)
CMYK	cmyk(54.7%, 60.4%, 0%, 79.2%)
CIE-LAB	lab(8.89, 11.91, -20.62)
CIE-LCH	lch(8.89, 23.82, 300.01°)
OKLab	oklab(21.93% 0.0152 -0.0587)
OKLCH	oklch(21.93% 0.061 284.5)
XYZ	xyz(1.2873, 0.9875, 3.4902)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.51

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181535 #323515

analogous

#152235 #181535 #281535

triadic

#181535 #351815 #153518

tetradic

#181535 #351522 #323515 #153528

square

#181535 #351522 #323515 #153528

split-complementary

#181535 #352815 #223515

monochromatic

#0A0916 #0A0916 #181535 #2C2661 #40388D

Accessibility & contrast

On white

17.54

#181535 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#181535 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181535

17.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181535	#FFFFFF	#000000	##FFFFFF
##181535	1.00	17.54	1.20	17.54
#FFFFFF	17.54	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071A36

Deuteranopia (green-blind)

#061834

Tritanopia (blue-blind)

#0E1C22

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #181535;
/* rgb */ color: rgb(24, 21, 53);
/* oklch */ color: oklch(21.9% 0.061 284.5);

Tailwind

colors: {
  custom: {
    50: '#57526c',
    500: '#181535',
    950: '#000000',
  },
}

SCSS

$custom: #181535;
$custom-light: #57526c;
$custom-dark: #000000;

JSON

{
  "hex": "#181535",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 53
  },
  "hsl": {
    "h": 245.625,
    "s": 43.243,
    "l": 14.51
  },
  "oklch": {
    "l": 0.21933,
    "c": 0.06059,
    "h": 284.5
  },
  "luminance": 0.00988
}

Semantic roles & 50–950 ramp

primary

#181535

secondary

#676C3A

accent

#D355C7

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#030207

muted

#78787A

Preview Lab

Preview with #181535

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

Preview Lab → · Contrast checker → · Palette generator →