#177B8F#177B8F

#177B8F is a mid, moderate cyan. Relative luminance 0.163; OKLCH L 53.9% C 0.090 H 215.4°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#177B8F
RGB	rgb(23, 123, 143)
HSL	hsl(190, 72%, 33%)
HSV	hsv(190, 84%, 56%)
CMYK	cmyk(83.9%, 14%, 0%, 43.9%)
CIE-LAB	lab(47.40, -19.76, -18.59)
CIE-LCH	lch(47.40, 27.13, 223.25°)
OKLab	oklab(53.87% -0.0731 -0.0519)
OKLCH	oklch(53.87% 0.09 215.4)
XYZ	xyz(12.3921, 16.3297, 28.4801)
Luminance	0.1633 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#177B8F #8F2B17

analogous

#178F67 #177B8F #173F8F

triadic

#177B8F #8F177B #7B8F17

tetradic

#177B8F #67178F #8F2B17 #3F8F17

square

#177B8F #67178F #8F2B17 #3F8F17

split-complementary

#177B8F #8F173F #8F6717

monochromatic

#062026 #0F4E5A #177B8F #1FA8C4 #40C6E0

Accessibility & contrast

On white

4.92

#177B8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#177B8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #177B8F

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##177B8F	#FFFFFF	#000000	##FFFFFF
##177B8F	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7790

Deuteranopia (green-blind)

#5E6C8F

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #177b8f;
/* rgb */ color: rgb(23, 123, 143);
/* oklch */ color: oklch(53.9% 0.090 215.4);

Tailwind

colors: {
  custom: {
    50: '#6ca1af',
    500: '#177b8f',
    950: '#000000',
  },
}

SCSS

$custom: #177b8f;
$custom-light: #6ca1af;
$custom-dark: #000000;

JSON

{
  "hex": "#177b8f",
  "rgb": {
    "r": 23,
    "g": 123,
    "b": 143
  },
  "hsl": {
    "h": 190,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.53871,
    "c": 0.08968,
    "h": 215.4
  },
  "luminance": 0.16331
}

Semantic roles & 50–950 ramp

primary

#177B8F

secondary

#C15641

accent

#5739EF

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080F10

muted

#7B7E7F

Preview Lab

Preview with #177B8F

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

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