#1C579D#1C579D

#1C579D is a mid, vivid cyan. Relative luminance 0.095; OKLCH L 45.8% C 0.129 H 255.3°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#1C579D
RGB	rgb(28, 87, 157)
HSL	hsl(213, 70%, 36%)
HSV	hsv(213, 82%, 62%)
CMYK	cmyk(82.2%, 44.6%, 0%, 38.4%)
CIE-LAB	lab(36.92, 7.69, -43.37)
CIE-LCH	lch(36.92, 44.04, 280.06°)
OKLab	oklab(45.82% -0.0327 -0.1243)
OKLCH	oklch(45.82% 0.129 255.3)
XYZ	xyz(9.9706, 9.4964, 33.1992)
Luminance	0.0950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C579D #9D621C

analogous

#1C989D #1C579D #211C9D

triadic

#1C579D #9D1C57 #579D1C

tetradic

#1C579D #9D1C98 #9D621C #1C9D21

square

#1C579D #9D1C98 #9D621C #1C9D21

split-complementary

#1C579D #9D211C #989D1C

monochromatic

#091D35 #133A69 #1C579D #2574D1 #5394E0

Accessibility & contrast

On white

7.24

#1C579D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#1C579D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C579D

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C579D	#FFFFFF	#000000	##FFFFFF
##1C579D	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)

#335DA0

Deuteranopia (green-blind)

#19529C

Tritanopia (blue-blind)

#006872

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1c579d;
/* rgb */ color: rgb(28, 87, 157);
/* oklch */ color: oklch(45.8% 0.129 255.3);

Tailwind

colors: {
  custom: {
    50: '#6e85ba',
    500: '#1c579d',
    950: '#000000',
  },
}

SCSS

$custom: #1c579d;
$custom-light: #6e85ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1c579d",
  "rgb": {
    "r": 28,
    "g": 87,
    "b": 157
  },
  "hsl": {
    "h": 212.558,
    "s": 69.73,
    "l": 36.275
  },
  "oklch": {
    "l": 0.45819,
    "c": 0.12855,
    "h": 255.3
  },
  "luminance": 0.09498
}

Semantic roles & 50–950 ramp

primary

#1C579D

secondary

#C38F51

accent

#9B3BED

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1C579D

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

Preview Lab → · Contrast checker → · Palette generator →