#1C557C#1C557C

#1C557C is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.2% C 0.087 H 242.8°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#1C557C
RGB	rgb(28, 85, 124)
HSL	hsl(204, 63%, 30%)
HSV	hsv(204, 77%, 49%)
CMYK	cmyk(77.4%, 31.5%, 0%, 51.4%)
CIE-LAB	lab(34.39, -4.05, -27.29)
CIE-LCH	lch(34.39, 27.59, 261.55°)
OKLab	oklab(43.22% -0.0397 -0.0773)
OKLCH	oklch(43.22% 0.087 242.8)
XYZ	xyz(7.3641, 8.1983, 20.2592)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C557C #7C431C

analogous

#1C7C73 #1C557C #1C257C

triadic

#1C557C #7C1C55 #557C1C

tetradic

#1C557C #731C7C #7C431C #257C1C

square

#1C557C #731C7C #7C431C #257C1C

split-complementary

#1C557C #7C1C25 #7C731C

monochromatic

#061119 #11334A #1C557C #2777AE #3F97D4

Accessibility & contrast

On white

7.96

#1C557C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#1C557C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C557C

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C557C	#FFFFFF	#000000	##FFFFFF
##1C557C	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43567E

Deuteranopia (green-blind)

#364D7B

Tritanopia (blue-blind)

#005F63

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c557c;
/* rgb */ color: rgb(28, 85, 124);
/* oklch */ color: oklch(43.2% 0.087 242.8);

Tailwind

colors: {
  custom: {
    50: '#6784a2',
    500: '#1c557c',
    950: '#000000',
  },
}

SCSS

$custom: #1c557c;
$custom-light: #6784a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c557c",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 124
  },
  "hsl": {
    "h": 204.375,
    "s": 63.158,
    "l": 29.804
  },
  "oklch": {
    "l": 0.43217,
    "c": 0.0869,
    "h": 242.8
  },
  "luminance": 0.08199
}

Semantic roles & 50–950 ramp

primary

#1C557C

secondary

#B07044

accent

#8442E6

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C557C

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

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