#1D8CA6#1D8CA6

#1D8CA6 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.3% C 0.100 H 218.4°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#1D8CA6
RGB	rgb(29, 140, 166)
HSL	hsl(191, 70%, 38%)
HSV	hsv(191, 83%, 65%)
CMYK	cmyk(82.5%, 15.7%, 0%, 34.9%)
CIE-LAB	lab(53.78, -20.37, -22.19)
CIE-LCH	lch(53.78, 30.12, 227.45°)
OKLab	oklab(59.33% -0.0784 -0.0621)
OKLCH	oklch(59.33% 0.1 218.4)
XYZ	xyz(16.7648, 21.7684, 39.3871)
Luminance	0.2177 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D8CA6 #A6371D

analogous

#1DA67B #1D8CA6 #1D47A6

triadic

#1D8CA6 #A61D8C #8CA61D

tetradic

#1D8CA6 #7B1DA6 #A6371D #47A61D

square

#1D8CA6 #7B1DA6 #A6371D #47A61D

split-complementary

#1D8CA6 #A61D47 #A67B1D

monochromatic

#0B343E #146072 #1D8CA6 #27B7D9 #5BC9E2

Accessibility & contrast

On white

3.92

#1D8CA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#1D8CA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D8CA6

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D8CA6	#FFFFFF	#000000	##000000
##1D8CA6	1.00	3.92	5.35	5.35
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B88A7

Deuteranopia (green-blind)

#6A7BA6

Tritanopia (blue-blind)

#009594

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #1d8ca6;
/* rgb */ color: rgb(29, 140, 166);
/* oklch */ color: oklch(59.3% 0.100 218.4);

Tailwind

colors: {
  custom: {
    50: '#73adc0',
    500: '#1d8ca6',
    950: '#000000',
  },
}

SCSS

$custom: #1d8ca6;
$custom-light: #73adc0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d8ca6",
  "rgb": {
    "r": 29,
    "g": 140,
    "b": 166
  },
  "hsl": {
    "h": 191.387,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.59333,
    "c": 0.10001,
    "h": 218.4
  },
  "luminance": 0.21771
}

Semantic roles & 50–950 ramp

primary

#1D8CA6

secondary

#C66D59

accent

#5D3BED

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #1D8CA6

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

Preview Lab → · Contrast checker → · Palette generator →