#1C579E#1C579E

#1C579E is a mid, vivid cyan. Relative luminance 0.095; OKLCH L 45.9% C 0.130 H 255.5°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#1C579E
RGB	rgb(28, 87, 158)
HSL	hsl(213, 70%, 36%)
HSV	hsv(213, 82%, 62%)
CMYK	cmyk(82.3%, 44.9%, 0%, 38%)
CIE-LAB	lab(36.99, 8.09, -43.86)
CIE-LCH	lch(36.99, 44.60, 280.46°)
OKLab	oklab(45.89% -0.0325 -0.1258)
OKLCH	oklch(45.89% 0.13 255.5)
XYZ	xyz(10.0563, 9.5307, 33.6507)
Luminance	0.0953 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C579E #9E631C

analogous

#1C989E #1C579E #221C9E

triadic

#1C579E #9E1C57 #579E1C

tetradic

#1C579E #9E1C98 #9E631C #1C9E22

square

#1C579E #9E1C98 #9E631C #1C9E22

split-complementary

#1C579E #9E221C #989E1C

monochromatic

#0A1E36 #133A6A #1C579E #2574D2 #5494E1

Accessibility & contrast

On white

7.23

#1C579E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#1C579E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C579E

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C579E	#FFFFFF	#000000	##FFFFFF
##1C579E	1.00	7.23	2.91	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#325DA1

Deuteranopia (green-blind)

#17529D

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1c579e;
/* rgb */ color: rgb(28, 87, 158);
/* oklch */ color: oklch(45.9% 0.130 255.5);

Tailwind

colors: {
  custom: {
    50: '#6e85bb',
    500: '#1c579e',
    950: '#000000',
  },
}

SCSS

$custom: #1c579e;
$custom-light: #6e85bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c579e",
  "rgb": {
    "r": 28,
    "g": 87,
    "b": 158
  },
  "hsl": {
    "h": 212.769,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.45889,
    "c": 0.12992,
    "h": 255.5
  },
  "luminance": 0.09532
}

Semantic roles & 50–950 ramp

primary

#1C579E

secondary

#C49052

accent

#9C3BED

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1C579E

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

Preview Lab → · Contrast checker → · Palette generator →