#18277D#18277D

#18277D is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.6% C 0.145 H 268.7°. Best body text is #FFFFFF at 12.92:1 contrast (WCAG AA passes).

Color values

HEX	#18277D
RGB	rgb(24, 39, 125)
HSL	hsl(231, 68%, 29%)
HSV	hsv(231, 81%, 49%)
CMYK	cmyk(80.8%, 68.8%, 0%, 51%)
CIE-LAB	lab(20.54, 27.35, -50.21)
CIE-LCH	lch(20.54, 57.18, 298.58°)
OKLab	oklab(32.59% -0.0034 -0.1453)
OKLCH	oklch(32.59% 0.145 268.7)
XYZ	xyz(4.8026, 3.1254, 19.7482)
Luminance	0.0313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18277D #7D6E18

analogous

#185A7D #18277D #3C187D

triadic

#18277D #7D1827 #277D18

tetradic

#18277D #7D185A #7D6E18 #187D3C

square

#18277D #7D185A #7D6E18 #187D3C

split-complementary

#18277D #7D3C18 #5A7D18

monochromatic

#05081A #0E174A #18277D #2237B0 #374FD9

Accessibility & contrast

On white

12.92

#18277D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#18277D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18277D

12.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18277D	#FFFFFF	#000000	##FFFFFF
##18277D	1.00	12.92	1.63	12.92
#FFFFFF	12.92	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003680

Deuteranopia (green-blind)

#002D7B

Tritanopia (blue-blind)

#003E4E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #18277d;
/* rgb */ color: rgb(24, 39, 125);
/* oklch */ color: oklch(32.6% 0.145 268.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#18277d",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 125
  },
  "hsl": {
    "h": 231.089,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.32588,
    "c": 0.14539,
    "h": 268.7
  },
  "luminance": 0.03126
}

Semantic roles & 50–950 ramp

primary

#18277D

secondary

#B2A13F

accent

#D13DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #18277D

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

Preview Lab → · Contrast checker → · Palette generator →