#18738B#18738B

#18738B is a mid, moderate cyan. Relative luminance 0.143; OKLCH L 51.6% C 0.088 H 220.7°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#18738B
RGB	rgb(24, 115, 139)
HSL	hsl(193, 71%, 32%)
HSV	hsv(193, 83%, 55%)
CMYK	cmyk(82.7%, 17.3%, 0%, 45.5%)
CIE-LAB	lab(44.69, -16.70, -20.39)
CIE-LCH	lch(44.69, 26.36, 230.69°)
OKLab	oklab(51.63% -0.0664 -0.0571)
OKLCH	oklch(51.63% 0.088 220.7)
XYZ	xyz(11.1657, 14.3183, 26.5963)
Luminance	0.1432 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18738B #8B3018

analogous

#188B6A #18738B #18398B

triadic

#18738B #8B1873 #738B18

tetradic

#18738B #6A188B #8B3018 #398B18

square

#18738B #6A188B #8B3018 #398B18

split-complementary

#18738B #8B1839 #8B6A18

monochromatic

#061D23 #0F4857 #18738B #219EBF #3FBDDE

Accessibility & contrast

On white

5.43

#18738B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#18738B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18738B

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18738B	#FFFFFF	#000000	##FFFFFF
##18738B	1.00	5.43	3.86	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#65708C

Deuteranopia (green-blind)

#56658B

Tritanopia (blue-blind)

#007B7B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #18738b;
/* rgb */ color: rgb(24, 115, 139);
/* oklch */ color: oklch(51.6% 0.088 220.7);

Tailwind

colors: {
  custom: {
    50: '#6b9bad',
    500: '#18738b',
    950: '#000000',
  },
}

SCSS

$custom: #18738b;
$custom-light: #6b9bad;
$custom-dark: #000000;

JSON

{
  "hex": "#18738b",
  "rgb": {
    "r": 24,
    "g": 115,
    "b": 139
  },
  "hsl": {
    "h": 192.522,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.51634,
    "c": 0.08761,
    "h": 220.7
  },
  "luminance": 0.1432
}

Semantic roles & 50–950 ramp

primary

#18738B

secondary

#BE5B40

accent

#603AED

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080E10

muted

#7A7E7F

Preview Lab

Preview with #18738B

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

Preview Lab → · Contrast checker → · Palette generator →