#18778F#18778F

#18778F is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 52.9% C 0.090 H 219.9°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#18778F
RGB	rgb(24, 119, 143)
HSL	hsl(192, 71%, 33%)
HSV	hsv(192, 83%, 56%)
CMYK	cmyk(83.2%, 16.8%, 0%, 43.9%)
CIE-LAB	lab(46.14, -17.49, -20.53)
CIE-LCH	lch(46.14, 26.97, 229.58°)
OKLab	oklab(52.85% -0.0688 -0.0575)
OKLCH	oklch(52.85% 0.09 219.9)
XYZ	xyz(11.9293, 15.3695, 28.3192)
Luminance	0.1537 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18778F #8F3018

analogous

#188F6B #18778F #183B8F

triadic

#18778F #8F1877 #778F18

tetradic

#18778F #6B188F #8F3018 #3B8F18

square

#18778F #6B188F #8F3018 #3B8F18

split-complementary

#18778F #8F183B #8F6B18

monochromatic

#062026 #0F4B5B #18778F #21A3C3 #42C0DF

Accessibility & contrast

On white

5.15

#18778F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#18778F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18778F

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18778F	#FFFFFF	#000000	##FFFFFF
##18778F	1.00	5.15	4.07	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687490

Deuteranopia (green-blind)

#59688F

Tritanopia (blue-blind)

#007F7F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #18778f;
/* rgb */ color: rgb(24, 119, 143);
/* oklch */ color: oklch(52.9% 0.090 219.9);

Tailwind

colors: {
  custom: {
    50: '#6c9eaf',
    500: '#18778f',
    950: '#000000',
  },
}

SCSS

$custom: #18778f;
$custom-light: #6c9eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#18778f",
  "rgb": {
    "r": 24,
    "g": 119,
    "b": 143
  },
  "hsl": {
    "h": 192.101,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.52854,
    "c": 0.08966,
    "h": 219.9
  },
  "luminance": 0.15371
}

Semantic roles & 50–950 ramp

primary

#18778F

secondary

#C05C43

accent

#5E3AEE

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #18778F

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

Preview Lab → · Contrast checker → · Palette generator →