#17758B#17758B

#17758B is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.1% C 0.088 H 218.3°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#17758B
RGB	rgb(23, 117, 139)
HSL	hsl(191, 72%, 32%)
HSV	hsv(191, 83%, 55%)
CMYK	cmyk(83.5%, 15.8%, 0%, 45.5%)
CIE-LAB	lab(45.31, -17.90, -19.43)
CIE-LCH	lch(45.31, 26.42, 227.34°)
OKLab	oklab(52.13% -0.0688 -0.0543)
OKLCH	oklch(52.13% 0.088 218.3)
XYZ	xyz(11.3728, 14.7674, 26.6721)
Luminance	0.1477 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17758B #8B2D17

analogous

#178B67 #17758B #173B8B

triadic

#17758B #8B1775 #758B17

tetradic

#17758B #67178B #8B2D17 #3B8B17

square

#17758B #67178B #8B2D17 #3B8B17

split-complementary

#17758B #8B173B #8B6717

monochromatic

#061D22 #0E4956 #17758B #20A1C0 #3DC0DF

Accessibility & contrast

On white

5.31

#17758B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#17758B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #17758B

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17758B	#FFFFFF	#000000	##FFFFFF
##17758B	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	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: #17758b;
/* rgb */ color: rgb(23, 117, 139);
/* oklch */ color: oklch(52.1% 0.088 218.3);

Tailwind

colors: {
  custom: {
    50: '#6b9dad',
    500: '#17758b',
    950: '#000000',
  },
}

SCSS

$custom: #17758b;
$custom-light: #6b9dad;
$custom-dark: #000000;

JSON

{
  "hex": "#17758b",
  "rgb": {
    "r": 23,
    "g": 117,
    "b": 139
  },
  "hsl": {
    "h": 191.379,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.52134,
    "c": 0.08767,
    "h": 218.3
  },
  "luminance": 0.14769
}

Semantic roles & 50–950 ramp

primary

#17758B

secondary

#BF573F

accent

#5C39EE

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080E10

muted

#7A7E7F

Preview Lab

Preview with #17758B

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

Preview Lab → · Contrast checker → · Palette generator →