#181A35#181A35

#181A35 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.1% C 0.052 H 278.3°. Best body text is #FFFFFF at 16.96:1 contrast (WCAG AA passes).

Color values

HEX	#181A35
RGB	rgb(24, 26, 53)
HSL	hsl(236, 38%, 15%)
HSV	hsv(236, 55%, 21%)
CMYK	cmyk(54.7%, 50.9%, 0%, 79.2%)
CIE-LAB	lab(10.48, 8.08, -18.08)
CIE-LCH	lch(10.48, 19.80, 294.08°)
OKLab	oklab(23.14% 0.0075 -0.0512)
OKLCH	oklch(23.14% 0.052 278.3)
XYZ	xyz(1.3885, 1.1899, 3.5240)
Luminance	0.0119 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A35 #353318

analogous

#182835 #181A35 #241835

triadic

#181A35 #35181A #1A3518

tetradic

#181A35 #351828 #353318 #183524

square

#181A35 #351828 #353318 #183524

split-complementary

#181A35 #352418 #283518

monochromatic

#0A0A15 #0A0A15 #181A35 #2B2F5F #3E4389

Accessibility & contrast

On white

16.96

#181A35 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#181A35 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A35

16.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A35	#FFFFFF	#000000	##FFFFFF
##181A35	1.00	16.96	1.24	16.96
#FFFFFF	16.96	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F1E36

Deuteranopia (green-blind)

#0D1B34

Tritanopia (blue-blind)

#0E2024

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #181a35;
/* rgb */ color: rgb(24, 26, 53);
/* oklch */ color: oklch(23.1% 0.052 278.3);

Tailwind

colors: {
  custom: {
    50: '#57566c',
    500: '#181a35',
    950: '#000000',
  },
}

SCSS

$custom: #181a35;
$custom-light: #57566c;
$custom-dark: #000000;

JSON

{
  "hex": "#181a35",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 53
  },
  "hsl": {
    "h": 235.862,
    "s": 37.662,
    "l": 15.098
  },
  "oklch": {
    "l": 0.23139,
    "c": 0.05172,
    "h": 278.3
  },
  "luminance": 0.0119
}

Semantic roles & 50–950 ramp

primary

#181A35

secondary

#6B683E

accent

#C65ACE

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030307

muted

#78787A

Preview Lab

Preview with #181A35

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

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