#18277F#18277F

#18277F is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.8% C 0.148 H 268.6°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#18277F
RGB	rgb(24, 39, 127)
HSL	hsl(231, 68%, 30%)
HSV	hsv(231, 81%, 50%)
CMYK	cmyk(81.1%, 69.3%, 0%, 50.2%)
CIE-LAB	lab(20.74, 28.13, -51.15)
CIE-LCH	lch(20.74, 58.38, 298.81°)
OKLab	oklab(32.8% -0.0035 -0.1481)
OKLCH	oklch(32.8% 0.148 268.6)
XYZ	xyz(4.9316, 3.1770, 20.4279)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18277F #7F7018

analogous

#185B7F #18277F #3D187F

triadic

#18277F #7F1827 #277F18

tetradic

#18277F #7F185B #7F7018 #187F3D

square

#18277F #7F185B #7F7018 #187F3D

split-complementary

#18277F #7F3D18 #5B7F18

monochromatic

#05081A #0E174C #18277F #2237B2 #3850D9

Accessibility & contrast

On white

12.84

#18277F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#18277F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18277F

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18277F	#FFFFFF	#000000	##FFFFFF
##18277F	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003782

Deuteranopia (green-blind)

#002D7D

Tritanopia (blue-blind)

#003F4F

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #18277f;
/* rgb */ color: rgb(24, 39, 127);
/* oklch */ color: oklch(32.8% 0.148 268.6);

Tailwind

colors: {
  custom: {
    50: '#6861a5',
    500: '#18277f',
    950: '#000000',
  },
}

SCSS

$custom: #18277f;
$custom-light: #6861a5;
$custom-dark: #000000;

JSON

{
  "hex": "#18277f",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 127
  },
  "hsl": {
    "h": 231.262,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32795,
    "c": 0.14813,
    "h": 268.6
  },
  "luminance": 0.03178
}

Semantic roles & 50–950 ramp

primary

#18277F

secondary

#B3A23F

accent

#D23DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #18277F

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

Preview Lab → · Contrast checker → · Palette generator →