#18758B#18758B

#18758B is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.2% C 0.087 H 218.4°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#18758B
RGB	rgb(24, 117, 139)
HSL	hsl(191, 71%, 32%)
HSV	hsv(191, 83%, 55%)
CMYK	cmyk(82.7%, 15.8%, 0%, 45.5%)
CIE-LAB	lab(45.33, -17.80, -19.40)
CIE-LCH	lch(45.33, 26.33, 227.46°)
OKLab	oklab(52.15% -0.0685 -0.0543)
OKLCH	oklch(52.15% 0.087 218.4)
XYZ	xyz(11.3962, 14.7794, 26.6732)
Luminance	0.1478 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18758B #8B2E18

analogous

#188B68 #18758B #183C8B

triadic

#18758B #8B1875 #758B18

tetradic

#18758B #68188B #8B2E18 #3C8B18

square

#18758B #68188B #8B2E18 #3C8B18

split-complementary

#18758B #8B183C #8B6818

monochromatic

#061D23 #0F4957 #18758B #21A1BF #3FC0DE

Accessibility & contrast

On white

5.31

#18758B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#18758B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18758B

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18758B	#FFFFFF	#000000	##FFFFFF
##18758B	1.00	5.31	3.96	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67718C

Deuteranopia (green-blind)

#58678B

Tritanopia (blue-blind)

#007C7C

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #18758b;
/* rgb */ color: rgb(24, 117, 139);
/* oklch */ color: oklch(52.2% 0.087 218.4);

Tailwind

colors: {
  custom: {
    50: '#6b9dad',
    500: '#18758b',
    950: '#000000',
  },
}

SCSS

$custom: #18758b;
$custom-light: #6b9dad;
$custom-dark: #000000;

JSON

{
  "hex": "#18758b",
  "rgb": {
    "r": 24,
    "g": 117,
    "b": 139
  },
  "hsl": {
    "h": 191.478,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.52152,
    "c": 0.08736,
    "h": 218.4
  },
  "luminance": 0.14781
}

Semantic roles & 50–950 ramp

primary

#18758B

secondary

#BE5940

accent

#5D3AED

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080E10

muted

#7A7E7F

Preview Lab

Preview with #18758B

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

Preview Lab → · Contrast checker → · Palette generator →