#1D6583#1D6583

#1D6583 is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.7% C 0.084 H 230.4°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX#1D6583
RGBrgb(29, 101, 131)
HSLhsl(198, 64%, 31%)
HSVhsv(198, 78%, 51%)
CMYKcmyk(77.9%, 22.9%, 0%, 48.6%)
CIE-LABlab(39.93, -11.03, -22.93)
CIE-LCHlch(39.93, 25.45, 244.32°)
OKLaboklab(47.74% -0.0533 -0.0645)
OKLCHoklch(47.74% 0.084 230.4)
XYZxyz(9.2554, 11.2062, 23.1435)
Luminance0.1121 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D6583 #833B1D
analogous
#1D836E #1D6583 #1D3283
triadic
#1D6583 #831D65 #65831D
tetradic
#1D6583 #6E1D83 #833B1D #32831D
square
#1D6583 #6E1D83 #833B1D #32831D
split-complementary
#1D6583 #831D32 #836E1D
monochromatic
#07181F #123E51 #1D6583 #288CB5 #45ABD6

Accessibility & contrast

On white

6.48
#1D6583 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.24
#1D6583 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D6583
6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D6583#FFFFFF#000000##FFFFFF
##1D65831.006.483.246.48
#FFFFFF6.481.0021.001.00
#0000003.2421.001.0021.00
##FFFFFF6.481.0021.001.00

Color blindness preview

Protanopia (red-blind)
#566484
Deuteranopia (green-blind)
#485A83
Tritanopia (blue-blind)
#006D6F
Achromatopsia (no color)
#5E5E5E

Design tokens & code

CSS
--color: #1d6583;
/* rgb */ color: rgb(29, 101, 131);
/* oklch */ color: oklch(47.7% 0.084 230.4);
Tailwind
colors: {
  custom: {
    50: '#6990a7',
    500: '#1d6583',
    950: '#000000',
  },
}
SCSS
$custom: #1d6583;
$custom-light: #6990a7;
$custom-dark: #000000;
JSON
{
  "hex": "#1d6583",
  "rgb": {
    "r": 29,
    "g": 101,
    "b": 131
  },
  "hsl": {
    "h": 197.647,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.47735,
    "c": 0.08364,
    "h": 230.4
  },
  "luminance": 0.11207
}

Semantic roles & 50–950 ramp

primary
#1D6583
secondary
#B66746
accent
#7241E7
background
#F6F8FA
surface
#ECF0F4
border
#C7CBCE
text
#070C0F
muted
#7A7D7F

Preview Lab

Preview with #1D6583

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

Preview Lab → · Contrast checker → · Palette generator →

#1D6583 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva