#177A8F#177A8F

#177A8F is a mid, moderate cyan. Relative luminance 0.161; OKLCH L 53.6% C 0.090 H 216.5°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#177A8F
RGB	rgb(23, 122, 143)
HSL	hsl(191, 72%, 33%)
HSV	hsv(191, 84%, 56%)
CMYK	cmyk(83.9%, 14.7%, 0%, 43.9%)
CIE-LAB	lab(47.08, -19.22, -19.08)
CIE-LCH	lch(47.08, 27.08, 224.79°)
OKLab	oklab(53.61% -0.0721 -0.0533)
OKLCH	oklch(53.61% 0.09 216.5)
XYZ	xyz(12.2687, 16.0828, 28.4390)
Luminance	0.1608 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#177A8F #8F2C17

analogous

#178F68 #177A8F #173E8F

triadic

#177A8F #8F177A #7A8F17

tetradic

#177A8F #68178F #8F2C17 #3E8F17

square

#177A8F #68178F #8F2C17 #3E8F17

split-complementary

#177A8F #8F173E #8F6817

monochromatic

#062026 #0F4D5A #177A8F #1FA7C4 #40C4E0

Accessibility & contrast

On white

4.98

#177A8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#177A8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #177A8F

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##177A8F	#FFFFFF	#000000	##FFFFFF
##177A8F	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: #177a8f;
/* rgb */ color: rgb(23, 122, 143);
/* oklch */ color: oklch(53.6% 0.090 216.5);

Tailwind

colors: {
  custom: {
    50: '#6ca0af',
    500: '#177a8f',
    950: '#000000',
  },
}

SCSS

$custom: #177a8f;
$custom-light: #6ca0af;
$custom-dark: #000000;

JSON

{
  "hex": "#177a8f",
  "rgb": {
    "r": 23,
    "g": 122,
    "b": 143
  },
  "hsl": {
    "h": 190.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.53612,
    "c": 0.0897,
    "h": 216.5
  },
  "luminance": 0.16084
}

Semantic roles & 50–950 ramp

primary

#177A8F

secondary

#C15741

accent

#5939EF

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #177A8F

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

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