#18277E#18277E

#18277E is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.7% C 0.147 H 268.6°. Best body text is #FFFFFF at 12.88:1 contrast (WCAG AA passes).

Color values

HEX	#18277E
RGB	rgb(24, 39, 126)
HSL	hsl(231, 68%, 29%)
HSV	hsv(231, 81%, 49%)
CMYK	cmyk(81%, 69%, 0%, 50.6%)
CIE-LAB	lab(20.64, 27.74, -50.68)
CIE-LCH	lch(20.64, 57.78, 298.70°)
OKLab	oklab(32.69% -0.0035 -0.1467)
OKLCH	oklch(32.69% 0.147 268.6)
XYZ	xyz(4.8668, 3.1510, 20.0863)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18277E #7E6F18

analogous

#185A7E #18277E #3C187E

triadic

#18277E #7E1827 #277E18

tetradic

#18277E #7E185A #7E6F18 #187E3C

square

#18277E #7E185A #7E6F18 #187E3C

split-complementary

#18277E #7E3C18 #5A7E18

monochromatic

#05081A #0E174B #18277E #2237B1 #374FD9

Accessibility & contrast

On white

12.88

#18277E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#18277E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18277E

12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18277E	#FFFFFF	#000000	##FFFFFF
##18277E	1.00	12.88	1.63	12.88
#FFFFFF	12.88	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003781

Deuteranopia (green-blind)

#002D7C

Tritanopia (blue-blind)

#003F4F

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #18277e;
/* rgb */ color: rgb(24, 39, 126);
/* oklch */ color: oklch(32.7% 0.147 268.6);

Tailwind

colors: {
  custom: {
    50: '#6861a4',
    500: '#18277e',
    950: '#000000',
  },
}

SCSS

$custom: #18277e;
$custom-light: #6861a4;
$custom-dark: #000000;

JSON

{
  "hex": "#18277e",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 126
  },
  "hsl": {
    "h": 231.176,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32691,
    "c": 0.14676,
    "h": 268.6
  },
  "luminance": 0.03152
}

Semantic roles & 50–950 ramp

primary

#18277E

secondary

#B2A23F

accent

#D13DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #18277E

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

Preview Lab → · Contrast checker → · Palette generator →