#1C5580#1C5580

#1C5580 is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.5% C 0.092 H 245.3°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#1C5580
RGB	rgb(28, 85, 128)
HSL	hsl(206, 64%, 31%)
HSV	hsv(206, 78%, 50%)
CMYK	cmyk(78.1%, 33.6%, 0%, 49.8%)
CIE-LAB	lab(34.60, -2.50, -29.43)
CIE-LCH	lch(34.60, 29.54, 265.15°)
OKLab	oklab(43.45% -0.0384 -0.0835)
OKLCH	oklch(43.45% 0.092 245.3)
XYZ	xyz(7.6222, 8.3015, 21.6185)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5580 #80471C

analogous

#1C8079 #1C5580 #1C2380

triadic

#1C5580 #801C55 #55801C

tetradic

#1C5580 #791C80 #80471C #23801C

square

#1C5580 #791C80 #80471C #23801C

split-complementary

#1C5580 #801C23 #80791C

monochromatic

#06121C #11344E #1C5580 #2776B2 #4196D5

Accessibility & contrast

On white

7.89

#1C5580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1C5580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C5580

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5580	#FFFFFF	#000000	##FFFFFF
##1C5580	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415682

Deuteranopia (green-blind)

#334D7F

Tritanopia (blue-blind)

#005F64

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c5580;
/* rgb */ color: rgb(28, 85, 128);
/* oklch */ color: oklch(43.5% 0.092 245.3);

Tailwind

colors: {
  custom: {
    50: '#6884a5',
    500: '#1c5580',
    950: '#000000',
  },
}

SCSS

$custom: #1c5580;
$custom-light: #6884a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5580",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 128
  },
  "hsl": {
    "h": 205.8,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.43453,
    "c": 0.09193,
    "h": 245.3
  },
  "luminance": 0.08302
}

Semantic roles & 50–950 ramp

primary

#1C5580

secondary

#B37444

accent

#8841E7

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C5580

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

Preview Lab → · Contrast checker → · Palette generator →