#187A8F#187A8F

#187A8F is a mid, moderate cyan. Relative luminance 0.161; OKLCH L 53.6% C 0.089 H 216.6°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#187A8F
RGB	rgb(24, 122, 143)
HSL	hsl(191, 71%, 33%)
HSV	hsv(191, 83%, 56%)
CMYK	cmyk(83.2%, 14.7%, 0%, 43.9%)
CIE-LAB	lab(47.10, -19.13, -19.05)
CIE-LCH	lch(47.10, 27.00, 224.89°)
OKLab	oklab(53.63% -0.0718 -0.0533)
OKLCH	oklch(53.63% 0.089 216.6)
XYZ	xyz(12.2920, 16.0949, 28.4400)
Luminance	0.1610 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#187A8F #8F2D18

analogous

#188F68 #187A8F #183F8F

triadic

#187A8F #8F187A #7A8F18

tetradic

#187A8F #68188F #8F2D18 #3F8F18

square

#187A8F #68188F #8F2D18 #3F8F18

split-complementary

#187A8F #8F183F #8F6818

monochromatic

#062126 #0F4D5B #187A8F #21A7C3 #42C4DF

Accessibility & contrast

On white

4.98

#187A8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#187A8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #187A8F

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##187A8F	#FFFFFF	#000000	##FFFFFF
##187A8F	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7690

Deuteranopia (green-blind)

#5C6B8F

Tritanopia (blue-blind)

#008181

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #187a8f;
/* rgb */ color: rgb(24, 122, 143);
/* oklch */ color: oklch(53.6% 0.089 216.6);

Tailwind

colors: {
  custom: {
    50: '#6ca0af',
    500: '#187a8f',
    950: '#000000',
  },
}

SCSS

$custom: #187a8f;
$custom-light: #6ca0af;
$custom-dark: #000000;

JSON

{
  "hex": "#187a8f",
  "rgb": {
    "r": 24,
    "g": 122,
    "b": 143
  },
  "hsl": {
    "h": 190.588,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.53629,
    "c": 0.0894,
    "h": 216.6
  },
  "luminance": 0.16096
}

Semantic roles & 50–950 ramp

primary

#187A8F

secondary

#C05943

accent

#5A3AEE

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #187A8F

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

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