#181C90#181C90

#181C90 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.0% C 0.182 H 269.5°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#181C90
RGB	rgb(24, 28, 144)
HSL	hsl(238, 71%, 33%)
HSV	hsv(238, 83%, 56%)
CMYK	cmyk(83.3%, 80.6%, 0%, 43.5%)
CIE-LAB	lab(20.19, 41.12, -62.72)
CIE-LCH	lch(20.19, 74.99, 303.25°)
OKLab	oklab(32.96% -0.0016 -0.1817)
OKLCH	oklch(32.96% 0.182 269.5)
XYZ	xyz(5.8243, 3.0376, 26.6595)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C90 #908C18

analogous

#185890 #181C90 #501890

triadic

#181C90 #90181C #1C9018

tetradic

#181C90 #901858 #908C18 #189050

square

#181C90 #901858 #908C18 #189050

split-complementary

#181C90 #905018 #589018

monochromatic

#070827 #0F125C #181C90 #2126C4 #4348E0

Accessibility & contrast

On white

13.06

#181C90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#181C90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C90

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C90	#FFFFFF	#000000	##FFFFFF
##181C90	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003793

Deuteranopia (green-blind)

#002A8E

Tritanopia (blue-blind)

#004056

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #181c90;
/* rgb */ color: rgb(24, 28, 144);
/* oklch */ color: oklch(33.0% 0.182 269.5);

Tailwind

colors: {
  custom: {
    50: '#6e5bb2',
    500: '#181c90',
    950: '#000000',
  },
}

SCSS

$custom: #181c90;
$custom-light: #6e5bb2;
$custom-dark: #000000;

JSON

{
  "hex": "#181c90",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 144
  },
  "hsl": {
    "h": 238,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.32964,
    "c": 0.18167,
    "h": 269.5
  },
  "luminance": 0.03038
}

Semantic roles & 50–950 ramp

primary

#181C90

secondary

#C0BC43

accent

#E83AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #181C90

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

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