#17588C#17588C

#17588C is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.8% C 0.106 H 247.7°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#17588C
RGB	rgb(23, 88, 140)
HSL	hsl(207, 72%, 32%)
HSV	hsv(207, 84%, 55%)
CMYK	cmyk(83.6%, 37.1%, 0%, 45.1%)
CIE-LAB	lab(36.09, -0.27, -34.43)
CIE-LCH	lch(36.09, 34.44, 269.56°)
OKLab	oklab(44.8% -0.0403 -0.0981)
OKLCH	oklch(44.8% 0.106 247.7)
XYZ	xyz(8.5749, 9.0540, 26.1015)
Luminance	0.0906 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17588C #8C4B17

analogous

#178C86 #17588C #171D8C

triadic

#17588C #8C1758 #588C17

tetradic

#17588C #86178C #8C4B17 #1D8C17

square

#17588C #86178C #8C4B17 #1D8C17

split-complementary

#17588C #8C171D #8C8617

monochromatic

#061623 #0E3757 #17588C #2079C1 #3E98DF

Accessibility & contrast

On white

7.47

#17588C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#17588C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17588C

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17588C	#FFFFFF	#000000	##FFFFFF
##17588C	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5B8E

Deuteranopia (green-blind)

#2E508B

Tritanopia (blue-blind)

#00656B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #17588c;
/* rgb */ color: rgb(23, 88, 140);
/* oklch */ color: oklch(44.8% 0.106 247.7);

Tailwind

colors: {
  custom: {
    50: '#6986ae',
    500: '#17588c',
    950: '#000000',
  },
}

SCSS

$custom: #17588c;
$custom-light: #6986ae;
$custom-dark: #000000;

JSON

{
  "hex": "#17588c",
  "rgb": {
    "r": 23,
    "g": 88,
    "b": 140
  },
  "hsl": {
    "h": 206.667,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.44802,
    "c": 0.10608,
    "h": 247.7
  },
  "luminance": 0.09055
}

Semantic roles & 50–950 ramp

primary

#17588C

secondary

#BF783F

accent

#8A39EF

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #17588C

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

Preview Lab → · Contrast checker → · Palette generator →