#18277C#18277C

#18277C is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.5% C 0.144 H 268.7°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#18277C
RGB	rgb(24, 39, 124)
HSL	hsl(231, 68%, 29%)
HSV	hsv(231, 81%, 49%)
CMYK	cmyk(80.6%, 68.5%, 0%, 51.4%)
CIE-LAB	lab(20.44, 26.96, -49.74)
CIE-LCH	lch(20.44, 56.58, 298.46°)
OKLab	oklab(32.49% -0.0033 -0.144)
OKLCH	oklch(32.49% 0.144 268.7)
XYZ	xyz(4.7390, 3.0999, 19.4135)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18277C #7C6D18

analogous

#18597C #18277C #3B187C

triadic

#18277C #7C1827 #277C18

tetradic

#18277C #7C1859 #7C6D18 #187C3B

square

#18277C #7C1859 #7C6D18 #187C3B

split-complementary

#18277C #7C3B18 #597C18

monochromatic

#05081A #0E1749 #18277C #2237AF #364FD8

Accessibility & contrast

On white

12.96

#18277C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#18277C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18277C

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18277C	#FFFFFF	#000000	##FFFFFF
##18277C	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367F

Deuteranopia (green-blind)

#002D7A

Tritanopia (blue-blind)

#003E4E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #18277c;
/* rgb */ color: rgb(24, 39, 124);
/* oklch */ color: oklch(32.5% 0.144 268.7);

Tailwind

colors: {
  custom: {
    50: '#6761a3',
    500: '#18277c',
    950: '#000000',
  },
}

SCSS

$custom: #18277c;
$custom-light: #6761a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18277c",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 124
  },
  "hsl": {
    "h": 231,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32485,
    "c": 0.14401,
    "h": 268.7
  },
  "luminance": 0.031
}

Semantic roles & 50–950 ramp

primary

#18277C

secondary

#B1A03F

accent

#D03DEA

background

#F6F5FA

surface

#EBE9F4

border

#C6C5CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #18277C

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

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