#181A8E#181A8E

#181A8E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.181 H 269.8°. Best body text is #FFFFFF at 13.31:1 contrast (WCAG AA passes).

Color values

HEX	#181A8E
RGB	rgb(24, 26, 142)
HSL	hsl(239, 71%, 33%)
HSV	hsv(239, 83%, 56%)
CMYK	cmyk(83.1%, 81.7%, 0%, 44.3%)
CIE-LAB	lab(19.58, 41.52, -62.49)
CIE-LCH	lch(19.58, 75.03, 303.60°)
OKLab	oklab(32.46% -0.0007 -0.181)
OKLCH	oklch(32.46% 0.181 269.8)
XYZ	xyz(5.6269, 2.8853, 25.8463)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A8E #8E8C18

analogous

#18558E #181A8E #51188E

triadic

#181A8E #8E181A #1A8E18

tetradic

#181A8E #8E1855 #8E8C18 #188E51

square

#181A8E #8E1855 #8E8C18 #188E51

split-complementary

#181A8E #8E5118 #558E18

monochromatic

#060725 #0F105A #181A8E #2124C2 #4144DF

Accessibility & contrast

On white

13.31

#181A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#181A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A8E

13.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A8E	#FFFFFF	#000000	##FFFFFF
##181A8E	1.00	13.31	1.58	13.31
#FFFFFF	13.31	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#00298C

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #181a8e;
/* rgb */ color: rgb(24, 26, 142);
/* oklch */ color: oklch(32.5% 0.181 269.8);

Tailwind

colors: {
  custom: {
    50: '#6e59b0',
    500: '#181a8e',
    950: '#000000',
  },
}

SCSS

$custom: #181a8e;
$custom-light: #6e59b0;
$custom-dark: #000000;

JSON

{
  "hex": "#181a8e",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 142
  },
  "hsl": {
    "h": 238.983,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32462,
    "c": 0.18098,
    "h": 269.8
  },
  "luminance": 0.02886
}

Semantic roles & 50–950 ramp

primary

#181A8E

secondary

#C0BE42

accent

#EB3AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #181A8E

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

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