#18579F#18579F

#18579F is a mid, vivid cyan. Relative luminance 0.095; OKLCH L 45.9% C 0.132 H 255.0°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#18579F
RGB	rgb(24, 87, 159)
HSL	hsl(212, 74%, 36%)
HSV	hsv(212, 85%, 62%)
CMYK	cmyk(84.9%, 45.3%, 0%, 37.6%)
CIE-LAB	lab(36.95, 8.12, -44.52)
CIE-LCH	lch(36.95, 45.26, 280.33°)
OKLab	oklab(45.86% -0.0343 -0.1278)
OKLCH	oklch(45.86% 0.132 255)
XYZ	xyz(10.0405, 9.5125, 34.1011)
Luminance	0.0951 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18579F #9F6018

analogous

#189A9F #18579F #1D189F

triadic

#18579F #9F1857 #579F18

tetradic

#18579F #9F189A #9F6018 #189F1D

square

#18579F #9F189A #9F6018 #189F1D

split-complementary

#18579F #9F1D18 #9A9F18

monochromatic

#081D35 #103A6A #18579F #2074D4 #4D94E4

Accessibility & contrast

On white

7.23

#18579F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#18579F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18579F

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18579F	#FFFFFF	#000000	##FFFFFF
##18579F	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315DA2

Deuteranopia (green-blind)

#13519E

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #18579f;
/* rgb */ color: rgb(24, 87, 159);
/* oklch */ color: oklch(45.9% 0.132 255.0);

Tailwind

colors: {
  custom: {
    50: '#6e85bc',
    500: '#18579f',
    950: '#000000',
  },
}

SCSS

$custom: #18579f;
$custom-light: #6e85bc;
$custom-dark: #000000;

JSON

{
  "hex": "#18579f",
  "rgb": {
    "r": 24,
    "g": 87,
    "b": 159
  },
  "hsl": {
    "h": 212,
    "s": 73.77,
    "l": 35.882
  },
  "oklch": {
    "l": 0.45856,
    "c": 0.13229,
    "h": 255
  },
  "luminance": 0.09514
}

Semantic roles & 50–950 ramp

primary

#18579F

secondary

#C68D4D

accent

#9A37F0

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #18579F

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

Preview Lab → · Contrast checker → · Palette generator →