#18256C#18256C

#18256C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.5% C 0.124 H 269.4°. Best body text is #FFFFFF at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#18256C
RGB	rgb(24, 37, 108)
HSL	hsl(231, 64%, 26%)
HSV	hsv(231, 78%, 42%)
CMYK	cmyk(77.8%, 65.7%, 0%, 57.6%)
CIE-LAB	lab(18.36, 22.01, -42.86)
CIE-LCH	lch(18.36, 48.18, 297.18°)
OKLab	oklab(30.49% -0.0012 -0.1238)
OKLCH	oklch(30.49% 0.124 269.4)
XYZ	xyz(3.7441, 2.5996, 14.4889)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18256C #6C5F18

analogous

#184F6C #18256C #35186C

triadic

#18256C #6C1825 #256C18

tetradic

#18256C #6C184F #6C5F18 #186C35

square

#18256C #6C184F #6C5F18 #186C35

split-complementary

#18256C #6C3518 #4F6C18

monochromatic

#060919 #0D143A #18256C #23369E #2E47D0

Accessibility & contrast

On white

13.82

#18256C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#18256C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18256C

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18256C	#FFFFFF	#000000	##FFFFFF
##18256C	1.00	13.82	1.52	13.82
#FFFFFF	13.82	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00316E

Deuteranopia (green-blind)

#00296B

Tritanopia (blue-blind)

#003744

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #18256c;
/* rgb */ color: rgb(24, 37, 108);
/* oklch */ color: oklch(30.5% 0.124 269.4);

Tailwind

colors: {
  custom: {
    50: '#635f97',
    500: '#18256c',
    950: '#000000',
  },
}

SCSS

$custom: #18256c;
$custom-light: #635f97;
$custom-dark: #000000;

JSON

{
  "hex": "#18256c",
  "rgb": {
    "r": 24,
    "g": 37,
    "b": 108
  },
  "hsl": {
    "h": 230.714,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.30486,
    "c": 0.12386,
    "h": 269.4
  },
  "luminance": 0.026
}

Semantic roles & 50–950 ramp

primary

#18256C

secondary

#A2923E

accent

#CD41E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #18256C

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

Preview Lab → · Contrast checker → · Palette generator →