#18839B#18839B

#18839B is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.5% C 0.096 H 217.8°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#18839B
RGB	rgb(24, 131, 155)
HSL	hsl(191, 73%, 35%)
HSV	hsv(191, 85%, 61%)
CMYK	cmyk(84.5%, 15.5%, 0%, 39.2%)
CIE-LAB	lab(50.44, -19.80, -20.96)
CIE-LCH	lch(50.44, 28.83, 226.63°)
OKLab	oklab(56.48% -0.0757 -0.0586)
OKLCH	oklch(56.48% 0.096 217.8)
XYZ	xyz(14.4068, 18.7915, 33.8718)
Luminance	0.1879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18839B #9B3018

analogous

#189B71 #18839B #18429B

triadic

#18839B #9B1883 #839B18

tetradic

#18839B #71189B #9B3018 #429B18

square

#18839B #71189B #9B3018 #429B18

split-complementary

#18839B #9B1842 #9B7118

monochromatic

#082931 #105666 #18839B #20B0D0 #4AC7E3

Accessibility & contrast

On white

4.41

#18839B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#18839B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #18839B

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18839B	#FFFFFF	#000000	##000000
##18839B	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#747F9C

Deuteranopia (green-blind)

#63739B

Tritanopia (blue-blind)

#008B8B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #18839b;
/* rgb */ color: rgb(24, 131, 155);
/* oklch */ color: oklch(56.5% 0.096 217.8);

Tailwind

colors: {
  custom: {
    50: '#6fa7b8',
    500: '#18839b',
    950: '#000000',
  },
}

SCSS

$custom: #18839b;
$custom-light: #6fa7b8;
$custom-dark: #000000;

JSON

{
  "hex": "#18839b",
  "rgb": {
    "r": 24,
    "g": 131,
    "b": 155
  },
  "hsl": {
    "h": 190.992,
    "s": 73.184,
    "l": 35.098
  },
  "oklch": {
    "l": 0.5648,
    "c": 0.09575,
    "h": 217.8
  },
  "luminance": 0.18793
}

Semantic roles & 50–950 ramp

primary

#18839B

secondary

#C5614A

accent

#5A38F0

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #18839B

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

Preview Lab → · Contrast checker → · Palette generator →