#17578E#17578E

#17578E is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.7% C 0.110 H 249.3°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#17578E
RGB	rgb(23, 87, 142)
HSL	hsl(208, 72%, 32%)
HSV	hsv(208, 84%, 56%)
CMYK	cmyk(83.8%, 38.7%, 0%, 44.3%)
CIE-LAB	lab(35.89, 1.18, -35.97)
CIE-LCH	lch(35.89, 35.99, 271.87°)
OKLab	oklab(44.68% -0.0388 -0.1026)
OKLCH	oklch(44.68% 0.11 249.3)
XYZ	xyz(8.6422, 8.9505, 26.8581)
Luminance	0.0895 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17578E #8E4E17

analogous

#178E89 #17578E #171C8E

triadic

#17578E #8E1757 #578E17

tetradic

#17578E #89178E #8E4E17 #1C8E17

square

#17578E #89178E #8E4E17 #1C8E17

split-complementary

#17578E #8E171C #8E8917

monochromatic

#061625 #0E3759 #17578E #2077C3 #3F96E0

Accessibility & contrast

On white

7.53

#17578E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#17578E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17578E

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17578E	#FFFFFF	#000000	##FFFFFF
##17578E	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5A90

Deuteranopia (green-blind)

#2A508D

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #17578e;
/* rgb */ color: rgb(23, 87, 142);
/* oklch */ color: oklch(44.7% 0.110 249.3);

Tailwind

colors: {
  custom: {
    50: '#6986af',
    500: '#17578e',
    950: '#000000',
  },
}

SCSS

$custom: #17578e;
$custom-light: #6986af;
$custom-dark: #000000;

JSON

{
  "hex": "#17578e",
  "rgb": {
    "r": 23,
    "g": 87,
    "b": 142
  },
  "hsl": {
    "h": 207.731,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.44682,
    "c": 0.10974,
    "h": 249.3
  },
  "luminance": 0.08952
}

Semantic roles & 50–950 ramp

primary

#17578E

secondary

#C07C40

accent

#8D39EF

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #17578E

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

Preview Lab → · Contrast checker → · Palette generator →