#18387F#18387F

#18387F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.3% C 0.126 H 263.2°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#18387F
RGB	rgb(24, 56, 127)
HSL	hsl(221, 68%, 30%)
HSV	hsv(221, 81%, 50%)
CMYK	cmyk(81.1%, 55.9%, 0%, 50.2%)
CIE-LAB	lab(25.43, 16.24, -43.50)
CIE-LCH	lch(25.43, 46.43, 290.47°)
OKLab	oklab(36.28% -0.0149 -0.1254)
OKLCH	oklch(36.28% 0.126 263.2)
XYZ	xyz(5.6203, 4.5542, 20.6574)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18387F #7F5F18

analogous

#186C7F #18387F #2B187F

triadic

#18387F #7F1838 #387F18

tetradic

#18387F #7F186C #7F5F18 #187F2B

square

#18387F #7F186C #7F5F18 #187F2B

split-complementary

#18387F #7F2B18 #6C7F18

monochromatic

#050B1A #0E214C #18387F #224FB2 #386AD9

Accessibility & contrast

On white

10.99

#18387F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#18387F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18387F

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18387F	#FFFFFF	#000000	##FFFFFF
##18387F	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004181

Deuteranopia (green-blind)

#00387E

Tritanopia (blue-blind)

#004955

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #18387f;
/* rgb */ color: rgb(24, 56, 127);
/* oklch */ color: oklch(36.3% 0.126 263.2);

Tailwind

colors: {
  custom: {
    50: '#676ea5',
    500: '#18387f',
    950: '#000000',
  },
}

SCSS

$custom: #18387f;
$custom-light: #676ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#18387f",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 127
  },
  "hsl": {
    "h": 221.359,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36283,
    "c": 0.1263,
    "h": 263.2
  },
  "luminance": 0.04555
}

Semantic roles & 50–950 ramp

primary

#18387F

secondary

#B38F3F

accent

#B53DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #18387F

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

Preview Lab → · Contrast checker → · Palette generator →