#1B8CB0#1B8CB0

#1B8CB0 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.8% C 0.107 H 225.7°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B8CB0
RGB	rgb(27, 140, 176)
HSL	hsl(194, 73%, 40%)
HSV	hsv(194, 85%, 69%)
CMYK	cmyk(84.7%, 20.5%, 0%, 31%)
CIE-LAB	lab(54.16, -17.06, -27.36)
CIE-LCH	lch(54.16, 32.24, 238.05°)
OKLab	oklab(59.76% -0.0751 -0.0769)
OKLCH	oklch(59.76% 0.107 225.7)
XYZ	xyz(17.6633, 22.1215, 44.4048)
Luminance	0.2212 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8CB0 #B03F1B

analogous

#1BB08A #1B8CB0 #1B41B0

triadic

#1B8CB0 #B01B8C #8CB01B

tetradic

#1B8CB0 #8A1BB0 #B03F1B #41B01B

square

#1B8CB0 #8A1BB0 #B03F1B #41B01B

split-complementary

#1B8CB0 #B01B41 #B08A1B

monochromatic

#0B3846 #13627B #1B8CB0 #2AB3DE #5FC6E6

Accessibility & contrast

On white

3.87

#1B8CB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#1B8CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8CB0

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8CB0	#FFFFFF	#000000	##000000
##1B8CB0	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7889B2

Deuteranopia (green-blind)

#657CB0

Tritanopia (blue-blind)

#009798

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #1b8cb0;
/* rgb */ color: rgb(27, 140, 176);
/* oklch */ color: oklch(59.8% 0.107 225.7);

Tailwind

colors: {
  custom: {
    50: '#74adc7',
    500: '#1b8cb0',
    950: '#000000',
  },
}

SCSS

$custom: #1b8cb0;
$custom-light: #74adc7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8cb0",
  "rgb": {
    "r": 27,
    "g": 140,
    "b": 176
  },
  "hsl": {
    "h": 194.497,
    "s": 73.399,
    "l": 39.804
  },
  "oklch": {
    "l": 0.5976,
    "c": 0.10747,
    "h": 225.7
  },
  "luminance": 0.22124
}

Semantic roles & 50–950 ramp

primary

#1B8CB0

secondary

#CB775C

accent

#6438F0

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1B8CB0

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

Preview Lab → · Contrast checker → · Palette generator →