#17579F#17579F

#17579F is a mid, vivid cyan. Relative luminance 0.095; OKLCH L 45.8% C 0.133 H 254.8°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#17579F
RGB	rgb(23, 87, 159)
HSL	hsl(212, 75%, 36%)
HSV	hsv(212, 86%, 62%)
CMYK	cmyk(85.5%, 45.3%, 0%, 37.6%)
CIE-LAB	lab(36.93, 8.03, -44.56)
CIE-LCH	lch(36.93, 45.28, 280.21°)
OKLab	oklab(45.83% -0.0348 -0.1279)
OKLCH	oklch(45.83% 0.133 254.8)
XYZ	xyz(10.0172, 9.5005, 34.1000)
Luminance	0.0950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17579F #9F5F17

analogous

#179B9F #17579F #1B179F

triadic

#17579F #9F1757 #579F17

tetradic

#17579F #9F179B #9F5F17 #179F1B

square

#17579F #9F179B #9F5F17 #179F1B

split-complementary

#17579F #9F1B17 #9B9F17

monochromatic

#081C34 #0F3A6A #17579F #1F74D4 #4B94E5

Accessibility & contrast

On white

7.24

#17579F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#17579F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17579F

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17579F	#FFFFFF	#000000	##FFFFFF
##17579F	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315DA2

Deuteranopia (green-blind)

#12519E

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #17579f;
/* rgb */ color: rgb(23, 87, 159);
/* oklch */ color: oklch(45.8% 0.133 254.8);

Tailwind

colors: {
  custom: {
    50: '#6d85bc',
    500: '#17579f',
    950: '#000000',
  },
}

SCSS

$custom: #17579f;
$custom-light: #6d85bc;
$custom-dark: #000000;

JSON

{
  "hex": "#17579f",
  "rgb": {
    "r": 23,
    "g": 87,
    "b": 159
  },
  "hsl": {
    "h": 211.765,
    "s": 74.725,
    "l": 35.686
  },
  "oklch": {
    "l": 0.45832,
    "c": 0.13253,
    "h": 254.8
  },
  "luminance": 0.09502
}

Semantic roles & 50–950 ramp

primary

#17579F

secondary

#C78D4B

accent

#9936F1

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #17579F

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

Preview Lab → · Contrast checker → · Palette generator →