#1D5B73#1D5B73

#1D5B73 is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.3% C 0.073 H 227.9°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX#1D5B73
RGBrgb(29, 91, 115)
HSLhsl(197, 60%, 28%)
HSVhsv(197, 75%, 45%)
CMYKcmyk(74.8%, 20.9%, 0%, 54.9%)
CIE-LABlab(35.95, -10.97, -19.31)
CIE-LCHlch(35.95, 22.21, 240.39°)
OKLaboklab(44.32% -0.0489 -0.0541)
OKLCHoklch(44.32% 0.073 227.9)
XYZxyz(7.3410, 8.9803, 17.5628)
Luminance0.0898 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D5B73 #73351D
analogous
#1D7360 #1D5B73 #1D3073
triadic
#1D5B73 #731D5B #5B731D
tetradic
#1D5B73 #601D73 #73351D #30731D
square
#1D5B73 #601D73 #73351D #30731D
split-complementary
#1D5B73 #731D30 #73601D
monochromatic
#061318 #113442 #1D5B73 #2982A4 #3CA5CE

Accessibility & contrast

On white

7.51
#1D5B73 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.80
#1D5B73 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5B73
7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D5B73#FFFFFF#000000##FFFFFF
##1D5B731.007.512.807.51
#FFFFFF7.511.0021.001.00
#0000002.8021.001.0021.00
##FFFFFF7.511.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4E5974
Deuteranopia (green-blind)
#435173
Tritanopia (blue-blind)
#006263
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #1d5b73;
/* rgb */ color: rgb(29, 91, 115);
/* oklch */ color: oklch(44.3% 0.073 227.9);
Tailwind
colors: {
  custom: {
    50: '#66899b',
    500: '#1d5b73',
    950: '#000000',
  },
}
SCSS
$custom: #1d5b73;
$custom-light: #66899b;
$custom-dark: #000000;
JSON
{
  "hex": "#1d5b73",
  "rgb": {
    "r": 29,
    "g": 91,
    "b": 115
  },
  "hsl": {
    "h": 196.744,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.44319,
    "c": 0.07296,
    "h": 227.9
  },
  "luminance": 0.08981
}

Semantic roles & 50–950 ramp

primary
#1D5B73
secondary
#A76045
accent
#7145E3
background
#F6F8F9
surface
#EBF0F2
border
#C6CBCC
text
#060B0E
muted
#7A7C7E

Preview Lab

Preview with #1D5B73

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

Preview Lab → · Contrast checker → · Palette generator →

#1D5B73 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva