#18317D#18317D

#18317D is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.6% C 0.133 H 265.8°. Best body text is #FFFFFF at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#18317D
RGB	rgb(24, 49, 125)
HSL	hsl(225, 68%, 29%)
HSV	hsv(225, 81%, 49%)
CMYK	cmyk(80.8%, 60.8%, 0%, 51%)
CIE-LAB	lab(23.24, 20.38, -45.79)
CIE-LCH	lch(23.24, 50.12, 293.99°)
OKLab	oklab(34.59% -0.0098 -0.1323)
OKLCH	oklch(34.59% 0.133 265.8)
XYZ	xyz(5.1754, 3.8709, 19.8725)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18317D #7D6418

analogous

#18647D #18317D #32187D

triadic

#18317D #7D1831 #317D18

tetradic

#18317D #7D1864 #7D6418 #187D32

square

#18317D #7D1864 #7D6418 #187D32

split-complementary

#18317D #7D3218 #647D18

monochromatic

#050A1A #0E1D4A #18317D #2245B0 #375FD9

Accessibility & contrast

On white

11.84

#18317D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#18317D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18317D

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18317D	#FFFFFF	#000000	##FFFFFF
##18317D	1.00	11.84	1.77	11.84
#FFFFFF	11.84	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C80

Deuteranopia (green-blind)

#00337C

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #18317d;
/* rgb */ color: rgb(24, 49, 125);
/* oklch */ color: oklch(34.6% 0.133 265.8);

Tailwind

colors: {
  custom: {
    50: '#6768a3',
    500: '#18317d',
    950: '#000000',
  },
}

SCSS

$custom: #18317d;
$custom-light: #6768a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18317d",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 125
  },
  "hsl": {
    "h": 225.149,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34586,
    "c": 0.13265,
    "h": 265.8
  },
  "luminance": 0.03871
}

Semantic roles & 50–950 ramp

primary

#18317D

secondary

#B2953F

accent

#C03DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18317D

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

Preview Lab → · Contrast checker → · Palette generator →