#1C579F#1C579F

#1C579F is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 46.0% C 0.131 H 255.8°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#1C579F
RGB	rgb(28, 87, 159)
HSL	hsl(213, 70%, 37%)
HSV	hsv(213, 82%, 62%)
CMYK	cmyk(82.4%, 45.3%, 0%, 37.6%)
CIE-LAB	lab(37.05, 8.50, -44.36)
CIE-LCH	lch(37.05, 45.17, 280.84°)
OKLab	oklab(45.96% -0.0323 -0.1273)
OKLCH	oklch(45.96% 0.131 255.8)
XYZ	xyz(10.1428, 9.5652, 34.1059)
Luminance	0.0957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C579F #9F641C

analogous

#1C999F #1C579F #231C9F

triadic

#1C579F #9F1C57 #579F1C

tetradic

#1C579F #9F1C99 #9F641C #1C9F23

square

#1C579F #9F1C99 #9F641C #1C9F23

split-complementary

#1C579F #9F231C #999F1C

monochromatic

#0A1E37 #133B6B #1C579F #2573D3 #5494E1

Accessibility & contrast

On white

7.21

#1C579F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#1C579F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C579F

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C579F	#FFFFFF	#000000	##FFFFFF
##1C579F	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315DA2

Deuteranopia (green-blind)

#15529E

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1c579f;
/* rgb */ color: rgb(28, 87, 159);
/* oklch */ color: oklch(46.0% 0.131 255.8);

Tailwind

colors: {
  custom: {
    50: '#6f85bc',
    500: '#1c579f',
    950: '#000000',
  },
}

SCSS

$custom: #1c579f;
$custom-light: #6f85bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c579f",
  "rgb": {
    "r": 28,
    "g": 87,
    "b": 159
  },
  "hsl": {
    "h": 212.977,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.45959,
    "c": 0.13129,
    "h": 255.8
  },
  "luminance": 0.09566
}

Semantic roles & 50–950 ramp

primary

#1C579F

secondary

#C49153

accent

#9D3BED

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1C579F

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

Preview Lab → · Contrast checker → · Palette generator →