#1D8AB0#1D8AB0

#1D8AB0 is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.3% C 0.108 H 227.6°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#1D8AB0
RGB	rgb(29, 138, 176)
HSL	hsl(196, 72%, 40%)
HSV	hsv(196, 84%, 69%)
CMYK	cmyk(83.5%, 21.6%, 0%, 31%)
CIE-LAB	lab(53.57, -15.80, -28.27)
CIE-LCH	lch(53.57, 32.38, 240.79°)
OKLab	oklab(59.3% -0.0726 -0.0795)
OKLCH	oklch(59.3% 0.108 227.6)
XYZ	xyz(17.4284, 21.5705, 44.3108)
Luminance	0.2157 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D8AB0 #B0431D

analogous

#1DB08C #1D8AB0 #1D41B0

triadic

#1D8AB0 #B01D8A #8AB01D

tetradic

#1D8AB0 #8C1DB0 #B0431D #41B01D

square

#1D8AB0 #8C1DB0 #B0431D #41B01D

split-complementary

#1D8AB0 #B01D41 #B08C1D

monochromatic

#0C3847 #14617B #1D8AB0 #2EAFDD #62C3E5

Accessibility & contrast

On white

3.95

#1D8AB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#1D8AB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D8AB0

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D8AB0	#FFFFFF	#000000	##000000
##1D8AB0	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7688B2

Deuteranopia (green-blind)

#637AAF

Tritanopia (blue-blind)

#009597

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #1d8ab0;
/* rgb */ color: rgb(29, 138, 176);
/* oklch */ color: oklch(59.3% 0.108 227.6);

Tailwind

colors: {
  custom: {
    50: '#74acc7',
    500: '#1d8ab0',
    950: '#000000',
  },
}

SCSS

$custom: #1d8ab0;
$custom-light: #74acc7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d8ab0",
  "rgb": {
    "r": 29,
    "g": 138,
    "b": 176
  },
  "hsl": {
    "h": 195.51,
    "s": 71.707,
    "l": 40.196
  },
  "oklch": {
    "l": 0.59298,
    "c": 0.10766,
    "h": 227.6
  },
  "luminance": 0.21573
}

Semantic roles & 50–950 ramp

primary

#1D8AB0

secondary

#CA7B5F

accent

#6839EE

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1D8AB0

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

Preview Lab → · Contrast checker → · Palette generator →