#181AA0#181AA0

#181AA0 is a dark, highly saturated blue. Relative luminance 0.035; OKLCH L 34.7% C 0.202 H 268.8°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#181AA0
RGB	rgb(24, 26, 160)
HSL	hsl(239, 74%, 36%)
HSV	hsv(239, 85%, 63%)
CMYK	cmyk(85%, 83.8%, 0%, 37.3%)
CIE-LAB	lab(21.84, 47.38, -69.85)
CIE-LCH	lch(21.84, 84.40, 304.15°)
OKLab	oklab(34.68% -0.0043 -0.2022)
OKLCH	oklch(34.68% 0.202 268.8)
XYZ	xyz(7.0891, 3.4702, 33.5471)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181AA0 #A09E18

analogous

#185EA0 #181AA0 #5A18A0

triadic

#181AA0 #A0181A #1AA018

tetradic

#181AA0 #A0185E #A09E18 #18A05A

square

#181AA0 #A0185E #A09E18 #18A05A

split-complementary

#181AA0 #A05A18 #5EA018

monochromatic

#080936 #10116B #181AA0 #2023D5 #4E50E4

Accessibility & contrast

On white

12.40

#181AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#181AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181AA0

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181AA0	#FFFFFF	#000000	##FFFFFF
##181AA0	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA4

Deuteranopia (green-blind)

#002D9E

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #181aa0;
/* rgb */ color: rgb(24, 26, 160);
/* oklch */ color: oklch(34.7% 0.202 268.8);

Tailwind

colors: {
  custom: {
    50: '#735bbe',
    500: '#181aa0',
    950: '#000000',
  },
}

SCSS

$custom: #181aa0;
$custom-light: #735bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#181aa0",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 160
  },
  "hsl": {
    "h": 239.118,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.3468,
    "c": 0.20229,
    "h": 268.8
  },
  "luminance": 0.03471
}

Semantic roles & 50–950 ramp

primary

#181AA0

secondary

#C6C54D

accent

#EE37F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #181AA0

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

Preview Lab → · Contrast checker → · Palette generator →