#17587F#17587F

#17587F is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.0% C 0.090 H 240.4°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#17587F
RGB	rgb(23, 88, 127)
HSL	hsl(203, 69%, 29%)
HSV	hsv(203, 82%, 50%)
CMYK	cmyk(81.9%, 30.7%, 0%, 50.2%)
CIE-LAB	lab(35.39, -5.40, -27.59)
CIE-LCH	lch(35.39, 28.12, 258.92°)
OKLab	oklab(44.02% -0.0444 -0.0781)
OKLCH	oklch(44.02% 0.09 240.4)
XYZ	xyz(7.6723, 8.6930, 21.3481)
Luminance	0.0869 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17587F #7F3E17

analogous

#177F72 #17587F #17247F

triadic

#17587F #7F1758 #587F17

tetradic

#17587F #72177F #7F3E17 #247F17

square

#17587F #72177F #7F3E17 #247F17

split-complementary

#17587F #7F1724 #7F7217

monochromatic

#05121A #0E344B #17587F #207CB3 #369DDB

Accessibility & contrast

On white

7.67

#17587F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#17587F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17587F

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17587F	#FFFFFF	#000000	##FFFFFF
##17587F	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#465981

Deuteranopia (green-blind)

#374F7E

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #17587f;
/* rgb */ color: rgb(23, 88, 127);
/* oklch */ color: oklch(44.0% 0.090 240.4);

Tailwind

colors: {
  custom: {
    50: '#6687a4',
    500: '#17587f',
    950: '#000000',
  },
}

SCSS

$custom: #17587f;
$custom-light: #6687a4;
$custom-dark: #000000;

JSON

{
  "hex": "#17587f",
  "rgb": {
    "r": 23,
    "g": 88,
    "b": 127
  },
  "hsl": {
    "h": 202.5,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.44018,
    "c": 0.08987,
    "h": 240.4
  },
  "luminance": 0.08694
}

Semantic roles & 50–950 ramp

primary

#17587F

secondary

#B46A3E

accent

#7E3CEC

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #17587F

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

Preview Lab → · Contrast checker → · Palette generator →