#17587C#17587C

#17587C is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.8% C 0.086 H 238.3°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#17587C
RGB	rgb(23, 88, 124)
HSL	hsl(201, 69%, 29%)
HSV	hsv(201, 81%, 49%)
CMYK	cmyk(81.5%, 29%, 0%, 51.4%)
CIE-LAB	lab(35.23, -6.57, -25.98)
CIE-LCH	lch(35.23, 26.80, 255.81°)
OKLab	oklab(43.85% -0.0454 -0.0735)
OKLCH	oklch(43.85% 0.086 238.3)
XYZ	xyz(7.4797, 8.6159, 20.3337)
Luminance	0.0862 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17587C #7C3B17

analogous

#177C6E #17587C #17267C

triadic

#17587C #7C1758 #587C17

tetradic

#17587C #6E177C #7C3B17 #267C17

square

#17587C #6E177C #7C3B17 #267C17

split-complementary

#17587C #7C1726 #7C6E17

monochromatic

#05121A #0D3348 #17587C #217DB0 #349ED9

Accessibility & contrast

On white

7.71

#17587C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#17587C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17587C

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17587C	#FFFFFF	#000000	##FFFFFF
##17587C	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587E

Deuteranopia (green-blind)

#394F7B

Tritanopia (blue-blind)

#006164

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #17587c;
/* rgb */ color: rgb(23, 88, 124);
/* oklch */ color: oklch(43.8% 0.086 238.3);

Tailwind

colors: {
  custom: {
    50: '#6587a2',
    500: '#17587c',
    950: '#000000',
  },
}

SCSS

$custom: #17587c;
$custom-light: #6587a2;
$custom-dark: #000000;

JSON

{
  "hex": "#17587c",
  "rgb": {
    "r": 23,
    "g": 88,
    "b": 124
  },
  "hsl": {
    "h": 201.386,
    "s": 68.707,
    "l": 28.824
  },
  "oklch": {
    "l": 0.43847,
    "c": 0.08638,
    "h": 238.3
  },
  "luminance": 0.08617
}

Semantic roles & 50–950 ramp

primary

#17587C

secondary

#B1673E

accent

#7B3CEC

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #17587C

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

Preview Lab → · Contrast checker → · Palette generator →