#18186E#18186E

#18186E is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.4% C 0.142 H 272.6°. Best body text is #FFFFFF at 15.06:1 contrast (WCAG AA passes).

Color values

HEX	#18186E
RGB	rgb(24, 24, 110)
HSL	hsl(240, 64%, 26%)
HSV	hsv(240, 78%, 43%)
CMYK	cmyk(78.2%, 78.2%, 0%, 56.9%)
CIE-LAB	lab(15.34, 31.51, -49.12)
CIE-LCH	lch(15.34, 58.36, 302.68°)
OKLab	oklab(28.36% 0.0065 -0.1422)
OKLCH	oklch(28.36% 0.142 272.6)
XYZ	xyz(3.5169, 1.9729, 14.9443)
Luminance	0.0197 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18186E #6E6E18

analogous

#18436E #18186E #43186E

triadic

#18186E #6E1818 #186E18

tetradic

#18186E #6E1843 #6E6E18 #186E43

square

#18186E #6E1843 #6E6E18 #186E43

split-complementary

#18186E #6E4318 #436E18

monochromatic

#050519 #0D0D3C #18186E #2323A0 #2F2FD2

Accessibility & contrast

On white

15.06

#18186E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#18186E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18186E

15.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18186E	#FFFFFF	#000000	##FFFFFF
##18186E	1.00	15.06	1.39	15.06
#FFFFFF	15.06	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B70

Deuteranopia (green-blind)

#00226C

Tritanopia (blue-blind)

#003142

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #18186e;
/* rgb */ color: rgb(24, 24, 110);
/* oklch */ color: oklch(28.4% 0.142 272.6);

Tailwind

colors: {
  custom: {
    50: '#655699',
    500: '#18186e',
    950: '#000000',
  },
}

SCSS

$custom: #18186e;
$custom-light: #655699;
$custom-dark: #000000;

JSON

{
  "hex": "#18186e",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 110
  },
  "hsl": {
    "h": 240,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.28362,
    "c": 0.14231,
    "h": 272.6
  },
  "luminance": 0.01973
}

Semantic roles & 50–950 ramp

primary

#18186E

secondary

#A4A43E

accent

#E741E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #18186E

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

Preview Lab → · Contrast checker → · Palette generator →