#181A77#181A77

#181A77 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.7% C 0.152 H 271.5°. Best body text is #FFFFFF at 14.45:1 contrast (WCAG AA passes).

Color values

HEX	#181A77
RGB	rgb(24, 26, 119)
HSL	hsl(239, 66%, 28%)
HSV	hsv(239, 80%, 47%)
CMYK	cmyk(79.8%, 78.2%, 0%, 53.3%)
CIE-LAB	lab(16.82, 33.54, -52.51)
CIE-LCH	lch(16.82, 62.31, 302.57°)
OKLab	oklab(29.72% 0.0039 -0.152)
OKLCH	oklch(29.72% 0.152 271.5)
XYZ	xyz(4.0747, 2.2644, 17.6715)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A77 #777518

analogous

#184977 #181A77 #451877

triadic

#181A77 #77181A #1A7718

tetradic

#181A77 #771849 #777518 #187745

square

#181A77 #771849 #777518 #187745

split-complementary

#181A77 #774518 #497718

monochromatic

#050619 #0E0F44 #181A77 #2225AA #3337D6

Accessibility & contrast

On white

14.45

#181A77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#181A77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A77

14.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A77	#FFFFFF	#000000	##FFFFFF
##181A77	1.00	14.45	1.45	14.45
#FFFFFF	14.45	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7A

Deuteranopia (green-blind)

#002575

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #181a77;
/* rgb */ color: rgb(24, 26, 119);
/* oklch */ color: oklch(29.7% 0.152 271.5);

Tailwind

colors: {
  custom: {
    50: '#67589f',
    500: '#181a77',
    950: '#000000',
  },
}

SCSS

$custom: #181a77;
$custom-light: #67589f;
$custom-dark: #000000;

JSON

{
  "hex": "#181a77",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 119
  },
  "hsl": {
    "h": 238.737,
    "s": 66.434,
    "l": 28.039
  },
  "oklch": {
    "l": 0.29715,
    "c": 0.15208,
    "h": 271.5
  },
  "luminance": 0.02265
}

Semantic roles & 50–950 ramp

primary

#181A77

secondary

#ACAA3F

accent

#E63EE9

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #181A77

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

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