#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
RGBrgb(28, 85, 124)
HSLhsl(204, 63%, 30%)
HSVhsv(204, 77%, 49%)
CMYKcmyk(77.4%, 31.5%, 0%, 51.4%)
CIE-LABlab(34.39, -4.05, -27.29)
CIE-LCHlch(34.39, 27.59, 261.55°)
OKLaboklab(43.22% -0.0397 -0.0773)
OKLCHoklch(43.22% 0.087 242.8)
XYZxyz(7.3641, 8.1983, 20.2592)
Luminance0.0820 (WCAG relative)
Temperaturecool
Familycyan

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
##1C557C1.007.962.647.96
#FFFFFF7.961.0021.001.00
#0000002.6421.001.0021.00
##FFFFFF7.961.0021.001.00

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.

Preview Lab → · Contrast checker → · Palette generator →

#1C557C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva