#181EA1#181EA1

#181EA1 is a dark, highly saturated blue. Relative luminance 0.037; OKLCH L 35.3% C 0.200 H 268.5°. Best body text is #FFFFFF at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#181EA1
RGB	rgb(24, 30, 161)
HSL	hsl(237, 74%, 36%)
HSV	hsv(237, 85%, 63%)
CMYK	cmyk(85.1%, 81.4%, 0%, 36.9%)
CIE-LAB	lab(22.64, 45.72, -69.13)
CIE-LCH	lch(22.64, 82.88, 303.48°)
OKLab	oklab(35.27% -0.0052 -0.2002)
OKLCH	oklch(35.27% 0.2 268.5)
XYZ	xyz(7.2718, 3.6951, 34.0413)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181EA1 #A19B18

analogous

#1863A1 #181EA1 #5718A1

triadic

#181EA1 #A1181E #1EA118

tetradic

#181EA1 #A11863 #A19B18 #18A157

square

#181EA1 #A11863 #A19B18 #18A157

split-complementary

#181EA1 #A15718 #63A118

monochromatic

#080A36 #10146C #181EA1 #2028D6 #4F55E5

Accessibility & contrast

On white

12.07

#181EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#181EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181EA1

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181EA1	#FFFFFF	#000000	##FFFFFF
##181EA1	1.00	12.07	1.74	12.07
#FFFFFF	12.07	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA5

Deuteranopia (green-blind)

#002F9F

Tritanopia (blue-blind)

#004860

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #181ea1;
/* rgb */ color: rgb(24, 30, 161);
/* oklch */ color: oklch(35.3% 0.200 268.5);

Tailwind

colors: {
  custom: {
    50: '#735dbe',
    500: '#181ea1',
    950: '#000000',
  },
}

SCSS

$custom: #181ea1;
$custom-light: #735dbe;
$custom-dark: #000000;

JSON

{
  "hex": "#181ea1",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 161
  },
  "hsl": {
    "h": 237.372,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35272,
    "c": 0.20031,
    "h": 268.5
  },
  "luminance": 0.03696
}

Semantic roles & 50–950 ramp

primary

#181EA1

secondary

#C7C24E

accent

#E937F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #181EA1

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

Preview Lab → · Contrast checker → · Palette generator →