#1C557D#1C557D

#1C557D is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.3% C 0.088 H 243.4°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#1C557D
RGB	rgb(28, 85, 125)
HSL	hsl(205, 63%, 30%)
HSV	hsv(205, 78%, 49%)
CMYK	cmyk(77.6%, 32%, 0%, 51%)
CIE-LAB	lab(34.44, -3.67, -27.83)
CIE-LCH	lch(34.44, 28.07, 262.49°)
OKLab	oklab(43.28% -0.0394 -0.0788)
OKLCH	oklch(43.28% 0.088 243.4)
XYZ	xyz(7.4276, 8.2237, 20.5939)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C557D #7D441C

analogous

#1C7D74 #1C557D #1C257D

triadic

#1C557D #7D1C55 #557D1C

tetradic

#1C557D #741C7D #7D441C #257D1C

square

#1C557D #741C7D #7D441C #257D1C

split-complementary

#1C557D #7D1C25 #7D741C

monochromatic

#061119 #11334B #1C557D #2777AF #3F97D4

Accessibility & contrast

On white

7.94

#1C557D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1C557D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C557D

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C557D	#FFFFFF	#000000	##FFFFFF
##1C557D	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43567F

Deuteranopia (green-blind)

#354D7C

Tritanopia (blue-blind)

#005F63

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c557d;
/* rgb */ color: rgb(28, 85, 125);
/* oklch */ color: oklch(43.3% 0.088 243.4);

Tailwind

colors: {
  custom: {
    50: '#6784a3',
    500: '#1c557d',
    950: '#000000',
  },
}

SCSS

$custom: #1c557d;
$custom-light: #6784a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c557d",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 125
  },
  "hsl": {
    "h": 204.742,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.43276,
    "c": 0.08814,
    "h": 243.4
  },
  "luminance": 0.08225
}

Semantic roles & 50–950 ramp

primary

#1C557D

secondary

#B17144

accent

#8541E6

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C557D

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

Preview Lab → · Contrast checker → · Palette generator →