#18638D#18638D

#18638D is a mid, moderate cyan. Relative luminance 0.110; OKLCH L 47.6% C 0.097 H 239.1°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#18638D
RGB	rgb(24, 99, 141)
HSL	hsl(202, 71%, 32%)
HSV	hsv(202, 83%, 55%)
CMYK	cmyk(83%, 29.8%, 0%, 44.7%)
CIE-LAB	lab(39.65, -6.65, -29.42)
CIE-LCH	lch(39.65, 30.16, 257.26°)
OKLab	oklab(47.64% -0.0499 -0.0833)
OKLCH	oklch(47.64% 0.097 239.1)
XYZ	xyz(9.6443, 11.0398, 26.8167)
Luminance	0.1104 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18638D #8D4218

analogous

#188D7C #18638D #18298D

triadic

#18638D #8D1863 #638D18

tetradic

#18638D #7C188D #8D4218 #298D18

square

#18638D #7C188D #8D4218 #298D18

split-complementary

#18638D #8D1829 #8D7C18

monochromatic

#061A24 #0F3E59 #18638D #2188C1 #41A6DF

Accessibility & contrast

On white

6.55

#18638D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#18638D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18638D

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18638D	#FFFFFF	#000000	##FFFFFF
##18638D	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F638F

Deuteranopia (green-blind)

#3F598C

Tritanopia (blue-blind)

#006E72

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #18638d;
/* rgb */ color: rgb(24, 99, 141);
/* oklch */ color: oklch(47.6% 0.097 239.1);

Tailwind

colors: {
  custom: {
    50: '#6a8fae',
    500: '#18638d',
    950: '#000000',
  },
}

SCSS

$custom: #18638d;
$custom-light: #6a8fae;
$custom-dark: #000000;

JSON

{
  "hex": "#18638d",
  "rgb": {
    "r": 24,
    "g": 99,
    "b": 141
  },
  "hsl": {
    "h": 201.538,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.47637,
    "c": 0.09711,
    "h": 239.1
  },
  "luminance": 0.11041
}

Semantic roles & 50–950 ramp

primary

#18638D

secondary

#BF6F42

accent

#7B3AEE

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C10

muted

#7A7D7F

Preview Lab

Preview with #18638D

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

Preview Lab → · Contrast checker → · Palette generator →