#1C5579#1C5579

#1C5579 is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.0% C 0.083 H 240.7°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#1C5579
RGB	rgb(28, 85, 121)
HSL	hsl(203, 62%, 29%)
HSV	hsv(203, 77%, 47%)
CMYK	cmyk(76.9%, 29.8%, 0%, 52.5%)
CIE-LAB	lab(34.24, -5.21, -25.68)
CIE-LCH	lch(34.24, 26.20, 258.53°)
OKLab	oklab(43.05% -0.0408 -0.0726)
OKLCH	oklch(43.05% 0.083 240.7)
XYZ	xyz(7.1772, 8.1235, 19.2752)
Luminance	0.0812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5579 #79401C

analogous

#1C796F #1C5579 #1C2779

triadic

#1C5579 #791C55 #55791C

tetradic

#1C5579 #6F1C79 #79401C #27791C

square

#1C5579 #6F1C79 #79401C #27791C

split-complementary

#1C5579 #791C27 #796F1C

monochromatic

#061119 #103247 #1C5579 #2878AB #3D99D2

Accessibility & contrast

On white

8.00

#1C5579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#1C5579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C5579

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5579	#FFFFFF	#000000	##FFFFFF
##1C5579	1.00	8.00	2.62	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#44557B

Deuteranopia (green-blind)

#374D78

Tritanopia (blue-blind)

#005E62

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1c5579;
/* rgb */ color: rgb(28, 85, 121);
/* oklch */ color: oklch(43.0% 0.083 240.7);

Tailwind

colors: {
  custom: {
    50: '#6684a0',
    500: '#1c5579',
    950: '#000000',
  },
}

SCSS

$custom: #1c5579;
$custom-light: #6684a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5579",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 121
  },
  "hsl": {
    "h": 203.226,
    "s": 62.416,
    "l": 29.216
  },
  "oklch": {
    "l": 0.43045,
    "c": 0.08326,
    "h": 240.7
  },
  "luminance": 0.08124
}

Semantic roles & 50–950 ramp

primary

#1C5579

secondary

#AD6D44

accent

#8142E5

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #1C5579

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

Preview Lab → · Contrast checker → · Palette generator →