#181A90#181A90

#181A90 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.7% C 0.183 H 269.7°. Best body text is #FFFFFF at 13.21:1 contrast (WCAG AA passes).

Color values

HEX	#181A90
RGB	rgb(24, 26, 144)
HSL	hsl(239, 71%, 33%)
HSV	hsv(239, 83%, 56%)
CMYK	cmyk(83.3%, 81.9%, 0%, 43.5%)
CIE-LAB	lab(19.83, 42.18, -63.33)
CIE-LCH	lch(19.83, 76.09, 303.67°)
OKLab	oklab(32.71% -0.0011 -0.1834)
OKLCH	oklch(32.71% 0.183 269.7)
XYZ	xyz(5.7784, 2.9459, 26.6442)
Luminance	0.0295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A90 #908E18

analogous

#185690 #181A90 #521890

triadic

#181A90 #90181A #1A9018

tetradic

#181A90 #901856 #908E18 #189052

square

#181A90 #901856 #908E18 #189052

split-complementary

#181A90 #905218 #569018

monochromatic

#070727 #0F115C #181A90 #2123C4 #4345E0

Accessibility & contrast

On white

13.21

#181A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#181A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A90

13.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A90	#FFFFFF	#000000	##FFFFFF
##181A90	1.00	13.21	1.59	13.21
#FFFFFF	13.21	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003693

Deuteranopia (green-blind)

#002A8E

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #181a90;
/* rgb */ color: rgb(24, 26, 144);
/* oklch */ color: oklch(32.7% 0.183 269.7);

Tailwind

colors: {
  custom: {
    50: '#6e59b2',
    500: '#181a90',
    950: '#000000',
  },
}

SCSS

$custom: #181a90;
$custom-light: #6e59b2;
$custom-dark: #000000;

JSON

{
  "hex": "#181a90",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 144
  },
  "hsl": {
    "h": 239,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.32706,
    "c": 0.18339,
    "h": 269.7
  },
  "luminance": 0.02947
}

Semantic roles & 50–950 ramp

primary

#181A90

secondary

#C0BE43

accent

#EB3AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #181A90

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

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