#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
RGBrgb(28, 85, 122)
HSLhsl(204, 63%, 29%)
HSVhsv(204, 77%, 48%)
CMYKcmyk(77%, 30.3%, 0%, 52.2%)
CIE-LABlab(34.29, -4.82, -26.22)
CIE-LCHlch(34.29, 26.66, 259.57°)
OKLaboklab(43.1% -0.0404 -0.0742)
OKLCHoklch(43.1% 0.084 241.4)
XYZxyz(7.2389, 8.1482, 19.5998)
Luminance0.0815 (WCAG relative)
Temperaturecool
Familycyan

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
##1C557A1.007.992.637.99
#FFFFFF7.991.0021.001.00
#0000002.6321.001.0021.00
##FFFFFF7.991.0021.001.00

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 →

#1C557A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva