#1D557A#1D557A

#1D557A is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.1% C 0.084 H 241.7°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX#1D557A
RGBrgb(29, 85, 122)
HSLhsl(204, 62%, 30%)
HSVhsv(204, 76%, 48%)
CMYKcmyk(76.2%, 30.3%, 0%, 52.2%)
CIE-LABlab(34.32, -4.68, -26.17)
CIE-LCHlch(34.32, 26.59, 259.86°)
OKLaboklab(43.13% -0.0398 -0.074)
OKLCHoklch(43.13% 0.084 241.7)
XYZxyz(7.2667, 8.1625, 19.6011)
Luminance0.0816 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D557A #7A421D
analogous
#1D7A71 #1D557A #1D277A
triadic
#1D557A #7A1D55 #557A1D
tetradic
#1D557A #711D7A #7A421D #277A1D
square
#1D557A #711D7A #7A421D #277A1D
split-complementary
#1D557A #7A1D27 #7A711D
monochromatic
#061119 #113349 #1D557A #2977AB #4098D2

Accessibility & contrast

On white

7.98
#1D557A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.63
#1D557A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D557A
7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D557A#FFFFFF#000000##FFFFFF
##1D557A1.007.982.637.98
#FFFFFF7.981.0021.001.00
#0000002.6321.001.0021.00
##FFFFFF7.981.0021.001.00

Color blindness preview

Protanopia (red-blind)
#44567C
Deuteranopia (green-blind)
#374D79
Tritanopia (blue-blind)
#005E62
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #1d557a;
/* rgb */ color: rgb(29, 85, 122);
/* oklch */ color: oklch(43.1% 0.084 241.7);
Tailwind
colors: {
  custom: {
    50: '#6784a0',
    500: '#1d557a',
    950: '#000000',
  },
}
SCSS
$custom: #1d557a;
$custom-light: #6784a0;
$custom-dark: #000000;
JSON
{
  "hex": "#1d557a",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 122
  },
  "hsl": {
    "h": 203.871,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.43134,
    "c": 0.08404,
    "h": 241.7
  },
  "luminance": 0.08163
}

Semantic roles & 50–950 ramp

primary
#1D557A
secondary
#AE6F45
accent
#8343E5
background
#F6F8F9
surface
#EBEFF2
border
#C6CACC
text
#070A0E
muted
#7A7C7E

Preview Lab

Preview with #1D557A

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

Preview Lab → · Contrast checker → · Palette generator →

#1D557A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva