#1D8CB3#1D8CB3

#1D8CB3 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 59.9% C 0.109 H 227.9°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#1D8CB3
RGB	rgb(29, 140, 179)
HSL	hsl(196, 72%, 41%)
HSV	hsv(196, 84%, 70%)
CMYK	cmyk(83.8%, 21.8%, 0%, 29.8%)
CIE-LAB	lab(54.31, -15.84, -28.83)
CIE-LCH	lch(54.31, 32.90, 241.21°)
OKLab	oklab(59.94% -0.0733 -0.0811)
OKLCH	oklch(59.94% 0.109 227.9)
XYZ	xyz(18.0181, 22.2698, 45.9879)
Luminance	0.2227 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D8CB3 #B3441D

analogous

#1DB38F #1D8CB3 #1D41B3

triadic

#1D8CB3 #B31D8C #8CB31D

tetradic

#1D8CB3 #8F1DB3 #B3441D #41B31D

square

#1D8CB3 #8F1DB3 #B3441D #41B31D

split-complementary

#1D8CB3 #B31D41 #B38F1D

monochromatic

#0C3A4A #14637E #1D8CB3 #30B0DD #64C4E6

Accessibility & contrast

On white

3.85

#1D8CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#1D8CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D8CB3

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D8CB3	#FFFFFF	#000000	##000000
##1D8CB3	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778AB5

Deuteranopia (green-blind)

#647CB2

Tritanopia (blue-blind)

#009799

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #1d8cb3;
/* rgb */ color: rgb(29, 140, 179);
/* oklch */ color: oklch(59.9% 0.109 227.9);

Tailwind

colors: {
  custom: {
    50: '#75adca',
    500: '#1d8cb3',
    950: '#000000',
  },
}

SCSS

$custom: #1d8cb3;
$custom-light: #75adca;
$custom-dark: #000000;

JSON

{
  "hex": "#1d8cb3",
  "rgb": {
    "r": 29,
    "g": 140,
    "b": 179
  },
  "hsl": {
    "h": 195.6,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.59935,
    "c": 0.10936,
    "h": 227.9
  },
  "luminance": 0.22272
}

Semantic roles & 50–950 ramp

primary

#1D8CB3

secondary

#CB7C61

accent

#6839EF

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1D8CB3

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

Preview Lab → · Contrast checker → · Palette generator →