#181AA1#181AA1

#181AA1 is a dark, highly saturated blue. Relative luminance 0.035; OKLCH L 34.8% C 0.203 H 268.7°. Best body text is #FFFFFF at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#181AA1
RGB	rgb(24, 26, 161)
HSL	hsl(239, 74%, 36%)
HSV	hsv(239, 85%, 63%)
CMYK	cmyk(85.1%, 83.9%, 0%, 36.9%)
CIE-LAB	lab(21.96, 47.70, -70.24)
CIE-LCH	lch(21.96, 84.91, 304.18°)
OKLab	oklab(34.8% -0.0045 -0.2034)
OKLCH	oklch(34.8% 0.203 268.7)
XYZ	xyz(7.1769, 3.5053, 34.0096)
Luminance	0.0351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181AA1 #A19F18

analogous

#185FA1 #181AA1 #5B18A1

triadic

#181AA1 #A1181A #1AA118

tetradic

#181AA1 #A1185F #A19F18 #18A15B

square

#181AA1 #A1185F #A19F18 #18A15B

split-complementary

#181AA1 #A15B18 #5FA118

monochromatic

#080936 #10116C #181AA1 #2023D6 #4F51E5

Accessibility & contrast

On white

12.34

#181AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#181AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181AA1

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181AA1	#FFFFFF	#000000	##FFFFFF
##181AA1	1.00	12.34	1.70	12.34
#FFFFFF	12.34	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA5

Deuteranopia (green-blind)

#002D9F

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #181aa1;
/* rgb */ color: rgb(24, 26, 161);
/* oklch */ color: oklch(34.8% 0.203 268.7);

Tailwind

colors: {
  custom: {
    50: '#735bbe',
    500: '#181aa1',
    950: '#000000',
  },
}

SCSS

$custom: #181aa1;
$custom-light: #735bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#181aa1",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 161
  },
  "hsl": {
    "h": 239.124,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.34804,
    "c": 0.20345,
    "h": 268.7
  },
  "luminance": 0.03506
}

Semantic roles & 50–950 ramp

primary

#181AA1

secondary

#C7C54E

accent

#EE37F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #181AA1

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

Preview Lab → · Contrast checker → · Palette generator →