#18317F#18317F

#18317F is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.8% C 0.136 H 265.9°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#18317F
RGB	rgb(24, 49, 127)
HSL	hsl(225, 68%, 30%)
HSV	hsv(225, 81%, 50%)
CMYK	cmyk(81.1%, 61.4%, 0%, 50.2%)
CIE-LAB	lab(23.41, 21.19, -46.77)
CIE-LCH	lch(23.41, 51.35, 294.37°)
OKLab	oklab(34.77% -0.0097 -0.1352)
OKLCH	oklch(34.77% 0.136 265.9)
XYZ	xyz(5.3044, 3.9225, 20.5521)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18317F #7F6618

analogous

#18657F #18317F #33187F

triadic

#18317F #7F1831 #317F18

tetradic

#18317F #7F1865 #7F6618 #187F33

square

#18317F #7F1865 #7F6618 #187F33

split-complementary

#18317F #7F3318 #657F18

monochromatic

#050A1A #0E1D4C #18317F #2245B2 #385FD9

Accessibility & contrast

On white

11.77

#18317F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#18317F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18317F

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18317F	#FFFFFF	#000000	##FFFFFF
##18317F	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D82

Deuteranopia (green-blind)

#00337D

Tritanopia (blue-blind)

#004553

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #18317f;
/* rgb */ color: rgb(24, 49, 127);
/* oklch */ color: oklch(34.8% 0.136 265.9);

Tailwind

colors: {
  custom: {
    50: '#6768a5',
    500: '#18317f',
    950: '#000000',
  },
}

SCSS

$custom: #18317f;
$custom-light: #6768a5;
$custom-dark: #000000;

JSON

{
  "hex": "#18317f",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 127
  },
  "hsl": {
    "h": 225.437,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.3477,
    "c": 0.13551,
    "h": 265.9
  },
  "luminance": 0.03923
}

Semantic roles & 50–950 ramp

primary

#18317F

secondary

#B3973F

accent

#C13DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18317F

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

Preview Lab → · Contrast checker → · Palette generator →