#1B809B#1B809B

#1B809B is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 55.8% C 0.095 H 221.1°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B809B
RGB	rgb(27, 128, 155)
HSL	hsl(193, 70%, 36%)
HSV	hsv(193, 83%, 61%)
CMYK	cmyk(82.6%, 17.4%, 0%, 39.2%)
CIE-LAB	lab(49.54, -17.91, -22.34)
CIE-LCH	lch(49.54, 28.63, 231.29°)
OKLab	oklab(55.77% -0.0718 -0.0626)
OKLCH	oklch(55.77% 0.095 221.1)
XYZ	xyz(14.0851, 18.0361, 33.7430)
Luminance	0.1804 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B809B #9B361B

analogous

#1B9B76 #1B809B #1B409B

triadic

#1B809B #9B1B80 #809B1B

tetradic

#1B809B #761B9B #9B361B #409B1B

square

#1B809B #761B9B #9B361B #409B1B

split-complementary

#1B809B #9B1B40 #9B761B

monochromatic

#092A33 #125567 #1B809B #24ABCF #50C2E0

Accessibility & contrast

On white

4.56

#1B809B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#1B809B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B809B

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B809B	#FFFFFF	#000000	##000000
##1B809B	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707D9C

Deuteranopia (green-blind)

#5F719B

Tritanopia (blue-blind)

#008989

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #1b809b;
/* rgb */ color: rgb(27, 128, 155);
/* oklch */ color: oklch(55.8% 0.095 221.1);

Tailwind

colors: {
  custom: {
    50: '#6fa5b8',
    500: '#1b809b',
    950: '#000000',
  },
}

SCSS

$custom: #1b809b;
$custom-light: #6fa5b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1b809b",
  "rgb": {
    "r": 27,
    "g": 128,
    "b": 155
  },
  "hsl": {
    "h": 192.656,
    "s": 70.33,
    "l": 35.686
  },
  "oklch": {
    "l": 0.55767,
    "c": 0.09525,
    "h": 221.1
  },
  "luminance": 0.18038
}

Semantic roles & 50–950 ramp

primary

#1B809B

secondary

#C3674F

accent

#603BED

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #1B809B

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

Preview Lab → · Contrast checker → · Palette generator →