#1D8DAD#1D8DAD

#1D8DAD is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 59.9% C 0.104 H 222.8°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D8DAD
RGB	rgb(29, 141, 173)
HSL	hsl(193, 71%, 40%)
HSV	hsv(193, 83%, 68%)
CMYK	cmyk(83.2%, 18.5%, 0%, 32.2%)
CIE-LAB	lab(54.37, -18.49, -25.30)
CIE-LCH	lch(54.37, 31.34, 233.84°)
OKLab	oklab(59.9% -0.0766 -0.071)
OKLCH	oklch(59.9% 0.104 222.8)
XYZ	xyz(17.5712, 22.3259, 42.9103)
Luminance	0.2233 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D8DAD #AD3D1D

analogous

#1DAD85 #1D8DAD #1D45AD

triadic

#1D8DAD #AD1D8D #8DAD1D

tetradic

#1D8DAD #851DAD #AD3D1D #45AD1D

square

#1D8DAD #851DAD #AD3D1D #45AD1D

split-complementary

#1D8DAD #AD1D45 #AD851D

monochromatic

#0B3844 #146279 #1D8DAD #2CB4DC #60C7E4

Accessibility & contrast

On white

3.84

#1D8DAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#1D8DAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D8DAD

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D8DAD	#FFFFFF	#000000	##000000
##1D8DAD	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8AAF

Deuteranopia (green-blind)

#687CAD

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #1d8dad;
/* rgb */ color: rgb(29, 141, 173);
/* oklch */ color: oklch(59.9% 0.104 222.8);

Tailwind

colors: {
  custom: {
    50: '#74aec5',
    500: '#1d8dad',
    950: '#000000',
  },
}

SCSS

$custom: #1d8dad;
$custom-light: #74aec5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d8dad",
  "rgb": {
    "r": 29,
    "g": 141,
    "b": 173
  },
  "hsl": {
    "h": 193.333,
    "s": 71.287,
    "l": 39.608
  },
  "oklch": {
    "l": 0.599,
    "c": 0.10441,
    "h": 222.8
  },
  "luminance": 0.22328
}

Semantic roles & 50–950 ramp

primary

#1D8DAD

secondary

#C9755D

accent

#623AEE

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1D8DAD

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

Preview Lab → · Contrast checker → · Palette generator →