#1B809F#1B809F

#1B809F is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.0% C 0.098 H 224.3°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B809F
RGB	rgb(27, 128, 159)
HSL	hsl(194, 71%, 36%)
HSV	hsv(194, 83%, 62%)
CMYK	cmyk(83%, 19.5%, 0%, 37.6%)
CIE-LAB	lab(49.70, -16.50, -24.42)
CIE-LCH	lch(49.70, 29.47, 235.96°)
OKLab	oklab(55.95% -0.0702 -0.0686)
OKLCH	oklch(55.95% 0.098 224.3)
XYZ	xyz(14.4266, 18.1727, 35.5415)
Luminance	0.1817 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B809F #9F3A1B

analogous

#1B9F7C #1B809F #1B3E9F

triadic

#1B809F #9F1B80 #809F1B

tetradic

#1B809F #7C1B9F #9F3A1B #3E9F1B

square

#1B809F #7C1B9F #9F3A1B #3E9F1B

split-complementary

#1B809F #9F1B3E #9F7C1B

monochromatic

#092C36 #12566B #1B809F #24AAD3 #53C0E2

Accessibility & contrast

On white

4.53

#1B809F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#1B809F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B809F

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B809F	#FFFFFF	#000000	##000000
##1B809F	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7DA1

Deuteranopia (green-blind)

#5E719F

Tritanopia (blue-blind)

#00898A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #1b809f;
/* rgb */ color: rgb(27, 128, 159);
/* oklch */ color: oklch(56.0% 0.098 224.3);

Tailwind

colors: {
  custom: {
    50: '#70a5bb',
    500: '#1b809f',
    950: '#000000',
  },
}

SCSS

$custom: #1b809f;
$custom-light: #70a5bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b809f",
  "rgb": {
    "r": 27,
    "g": 128,
    "b": 159
  },
  "hsl": {
    "h": 194.091,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.55954,
    "c": 0.09812,
    "h": 224.3
  },
  "luminance": 0.18175
}

Semantic roles & 50–950 ramp

primary

#1B809F

secondary

#C56C51

accent

#643AEE

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #1B809F

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

Preview Lab → · Contrast checker → · Palette generator →