#1D8CA8#1D8CA8

#1D8CA8 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.4% C 0.101 H 220.0°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#1D8CA8
RGB	rgb(29, 140, 168)
HSL	hsl(192, 71%, 39%)
HSV	hsv(192, 83%, 66%)
CMYK	cmyk(82.7%, 16.7%, 0%, 34.1%)
CIE-LAB	lab(53.86, -19.68, -23.22)
CIE-LCH	lch(53.86, 30.44, 229.72°)
OKLab	oklab(59.42% -0.0776 -0.065)
OKLCH	oklch(59.42% 0.101 220)
XYZ	xyz(16.9497, 21.8424, 40.3609)
Luminance	0.2185 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D8CA8 #A8391D

analogous

#1DA87E #1D8CA8 #1D47A8

triadic

#1D8CA8 #A81D8C #8CA81D

tetradic

#1D8CA8 #7E1DA8 #A8391D #47A81D

square

#1D8CA8 #7E1DA8 #A8391D #47A81D

split-complementary

#1D8CA8 #A81D47 #A87E1D

monochromatic

#0B3540 #146174 #1D8CA8 #28B6DA #5CC8E3

Accessibility & contrast

On white

3.91

#1D8CA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#1D8CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D8CA8

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D8CA8	#FFFFFF	#000000	##000000
##1D8CA8	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B88A9

Deuteranopia (green-blind)

#697BA8

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #1d8ca8;
/* rgb */ color: rgb(29, 140, 168);
/* oklch */ color: oklch(59.4% 0.101 220.0);

Tailwind

colors: {
  custom: {
    50: '#73adc2',
    500: '#1d8ca8',
    950: '#000000',
  },
}

SCSS

$custom: #1d8ca8;
$custom-light: #73adc2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d8ca8",
  "rgb": {
    "r": 29,
    "g": 140,
    "b": 168
  },
  "hsl": {
    "h": 192.086,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.59422,
    "c": 0.10124,
    "h": 220
  },
  "luminance": 0.21845
}

Semantic roles & 50–950 ramp

primary

#1D8CA8

secondary

#C7705A

accent

#5E3AED

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #1D8CA8

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

Preview Lab → · Contrast checker → · Palette generator →