#181A72#181A72

#181A72 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.1% C 0.145 H 271.9°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#181A72
RGB	rgb(24, 26, 114)
HSL	hsl(239, 65%, 27%)
HSV	hsv(239, 79%, 45%)
CMYK	cmyk(78.9%, 77.2%, 0%, 55.3%)
CIE-LAB	lab(16.24, 31.73, -50.24)
CIE-LCH	lch(16.24, 59.42, 302.27°)
OKLab	oklab(29.14% 0.0048 -0.1454)
OKLCH	oklch(29.14% 0.146 271.9)
XYZ	xyz(3.7823, 2.1475, 16.1315)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A72 #727018

analogous

#184772 #181A72 #431872

triadic

#181A72 #72181A #1A7218

tetradic

#181A72 #721847 #727018 #187243

square

#181A72 #721847 #727018 #187243

split-complementary

#181A72 #724318 #477218

monochromatic

#050619 #0D0E3F #181A72 #2326A5 #3134D4

Accessibility & contrast

On white

14.69

#181A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#181A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A72

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A72	#FFFFFF	#000000	##FFFFFF
##181A72	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D75

Deuteranopia (green-blind)

#002470

Tritanopia (blue-blind)

#003444

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #181a72;
/* rgb */ color: rgb(24, 26, 114);
/* oklch */ color: oklch(29.1% 0.145 271.9);

Tailwind

colors: {
  custom: {
    50: '#66579c',
    500: '#181a72',
    950: '#000000',
  },
}

SCSS

$custom: #181a72;
$custom-light: #66579c;
$custom-dark: #000000;

JSON

{
  "hex": "#181a72",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 114
  },
  "hsl": {
    "h": 238.667,
    "s": 65.217,
    "l": 27.059
  },
  "oklch": {
    "l": 0.29137,
    "c": 0.1455,
    "h": 271.9
  },
  "luminance": 0.02148
}

Semantic roles & 50–950 ramp

primary

#181A72

secondary

#A7A53E

accent

#E440E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #181A72

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

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