#1C557A#1C557A

#1C557A is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.1% C 0.084 H 241.4°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#1C557A
RGB	rgb(28, 85, 122)
HSL	hsl(204, 63%, 29%)
HSV	hsv(204, 77%, 48%)
CMYK	cmyk(77%, 30.3%, 0%, 52.2%)
CIE-LAB	lab(34.29, -4.82, -26.22)
CIE-LCH	lch(34.29, 26.66, 259.57°)
OKLab	oklab(43.1% -0.0404 -0.0742)
OKLCH	oklch(43.1% 0.084 241.4)
XYZ	xyz(7.2389, 8.1482, 19.5998)
Luminance	0.0815 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C557A #7A411C

analogous

#1C7A70 #1C557A #1C267A

triadic

#1C557A #7A1C55 #557A1C

tetradic

#1C557A #701C7A #7A411C #267A1C

square

#1C557A #701C7A #7A411C #267A1C

split-complementary

#1C557A #7A1C26 #7A701C

monochromatic

#061119 #113248 #1C557A #2778AC #3E98D3

Accessibility & contrast

On white

7.99

#1C557A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#1C557A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C557A

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C557A	#FFFFFF	#000000	##FFFFFF
##1C557A	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#44567C

Deuteranopia (green-blind)

#374D79

Tritanopia (blue-blind)

#005E62

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c557a;
/* rgb */ color: rgb(28, 85, 122);
/* oklch */ color: oklch(43.1% 0.084 241.4);

Tailwind

colors: {
  custom: {
    50: '#6684a0',
    500: '#1c557a',
    950: '#000000',
  },
}

SCSS

$custom: #1c557a;
$custom-light: #6684a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c557a",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 122
  },
  "hsl": {
    "h": 203.617,
    "s": 62.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.43102,
    "c": 0.08446,
    "h": 241.4
  },
  "luminance": 0.08149
}

Semantic roles & 50–950 ramp

primary

#1C557A

secondary

#AE6E44

accent

#8242E6

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #1C557A

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

Preview Lab → · Contrast checker → · Palette generator →