#18778B#18778B

#18778B is a mid, moderate cyan. Relative luminance 0.153; OKLCH L 52.7% C 0.087 H 216.1°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#18778B
RGB	rgb(24, 119, 139)
HSL	hsl(190, 71%, 32%)
HSV	hsv(190, 83%, 55%)
CMYK	cmyk(82.7%, 14.4%, 0%, 45.5%)
CIE-LAB	lab(45.98, -18.90, -18.41)
CIE-LCH	lch(45.98, 26.38, 224.25°)
OKLab	oklab(52.67% -0.0705 -0.0514)
OKLCH	oklch(52.67% 0.087 216.1)
XYZ	xyz(11.6317, 15.2505, 26.7517)
Luminance	0.1525 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18778B #8B2C18

analogous

#188B66 #18778B #183E8B

triadic

#18778B #8B1877 #778B18

tetradic

#18778B #66188B #8B2C18 #3E8B18

square

#18778B #66188B #8B2C18 #3E8B18

split-complementary

#18778B #8B183E #8B6618

monochromatic

#061E23 #0F4A57 #18778B #21A4BF #3FC2DE

Accessibility & contrast

On white

5.18

#18778B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#18778B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18778B

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18778B	#FFFFFF	#000000	##FFFFFF
##18778B	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69738C

Deuteranopia (green-blind)

#5A688B

Tritanopia (blue-blind)

#007E7D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #18778b;
/* rgb */ color: rgb(24, 119, 139);
/* oklch */ color: oklch(52.7% 0.087 216.1);

Tailwind

colors: {
  custom: {
    50: '#6b9ead',
    500: '#18778b',
    950: '#000000',
  },
}

SCSS

$custom: #18778b;
$custom-light: #6b9ead;
$custom-dark: #000000;

JSON

{
  "hex": "#18778b",
  "rgb": {
    "r": 24,
    "g": 119,
    "b": 139
  },
  "hsl": {
    "h": 190.435,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.52672,
    "c": 0.08725,
    "h": 216.1
  },
  "luminance": 0.15252
}

Semantic roles & 50–950 ramp

primary

#18778B

secondary

#BE5640

accent

#5A3AED

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #18778B

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

Preview Lab → · Contrast checker → · Palette generator →