#1D537A#1D537A

#1D537A is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.6% C 0.086 H 243.9°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX#1D537A
RGBrgb(29, 83, 122)
HSLhsl(205, 62%, 30%)
HSVhsv(205, 76%, 48%)
CMYKcmyk(76.2%, 32%, 0%, 52.2%)
CIE-LABlab(33.67, -3.42, -27.19)
CIE-LCHlch(33.67, 27.40, 262.83°)
OKLaboklab(42.62% -0.0377 -0.077)
OKLCHoklch(42.62% 0.086 243.9)
XYZxyz(7.1114, 7.8521, 19.5494)
Luminance0.0785 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D537A #7A441D
analogous
#1D7A72 #1D537A #1D257A
triadic
#1D537A #7A1D53 #537A1D
tetradic
#1D537A #721D7A #7A441D #257A1D
square
#1D537A #721D7A #7A441D #257A1D
split-complementary
#1D537A #7A1D25 #7A721D
monochromatic
#061119 #113149 #1D537A #2975AB #4094D2

Accessibility & contrast

On white

8.17
#1D537A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.57
#1D537A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D537A
8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D537A#FFFFFF#000000##FFFFFF
##1D537A1.008.172.578.17
#FFFFFF8.171.0021.001.00
#0000002.5721.001.0021.00
##FFFFFF8.171.0021.001.00

Color blindness preview

Protanopia (red-blind)
#41547C
Deuteranopia (green-blind)
#344B79
Tritanopia (blue-blind)
#005D61
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #1d537a;
/* rgb */ color: rgb(29, 83, 122);
/* oklch */ color: oklch(42.6% 0.086 243.9);
Tailwind
colors: {
  custom: {
    50: '#6783a0',
    500: '#1d537a',
    950: '#000000',
  },
}
SCSS
$custom: #1d537a;
$custom-light: #6783a0;
$custom-dark: #000000;
JSON
{
  "hex": "#1d537a",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 122
  },
  "hsl": {
    "h": 205.161,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.42623,
    "c": 0.08573,
    "h": 243.9
  },
  "luminance": 0.07853
}

Semantic roles & 50–950 ramp

primary
#1D537A
secondary
#AE7145
accent
#8743E5
background
#F6F7F9
surface
#EBEEF2
border
#C6C9CC
text
#070A0F
muted
#7A7C7E

Preview Lab

Preview with #1D537A

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

Preview Lab → · Contrast checker → · Palette generator →

#1D537A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva