#1B8399#1B8399

#1B8399 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.4% C 0.094 H 216.3°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#1B8399
RGB	rgb(27, 131, 153)
HSL	hsl(190, 70%, 35%)
HSV	hsv(190, 82%, 60%)
CMYK	cmyk(82.4%, 14.4%, 0%, 40%)
CIE-LAB	lab(50.41, -20.22, -19.84)
CIE-LCH	lch(50.41, 28.33, 224.46°)
OKLab	oklab(56.44% -0.0756 -0.0554)
OKLCH	oklch(56.44% 0.094 216.3)
XYZ	xyz(14.3156, 18.7637, 32.9981)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8399 #99311B

analogous

#1B9970 #1B8399 #1B4499

triadic

#1B8399 #991B83 #83991B

tetradic

#1B8399 #701B99 #99311B #44991B

square

#1B8399 #701B99 #99311B #44991B

split-complementary

#1B8399 #991B44 #99701B

monochromatic

#092A31 #125665 #1B8399 #24B0CD #4FC6E0

Accessibility & contrast

On white

4.42

#1B8399 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#1B8399 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8399

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8399	#FFFFFF	#000000	##000000
##1B8399	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#747F9A

Deuteranopia (green-blind)

#647399

Tritanopia (blue-blind)

#008B8A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #1b8399;
/* rgb */ color: rgb(27, 131, 153);
/* oklch */ color: oklch(56.4% 0.094 216.3);

Tailwind

colors: {
  custom: {
    50: '#6fa7b7',
    500: '#1b8399',
    950: '#000000',
  },
}

SCSS

$custom: #1b8399;
$custom-light: #6fa7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8399",
  "rgb": {
    "r": 27,
    "g": 131,
    "b": 153
  },
  "hsl": {
    "h": 190.476,
    "s": 70,
    "l": 35.294
  },
  "oklch": {
    "l": 0.56441,
    "c": 0.09373,
    "h": 216.3
  },
  "luminance": 0.18766
}

Semantic roles & 50–950 ramp

primary

#1B8399

secondary

#C2624E

accent

#5A3BED

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #1B8399

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

Preview Lab → · Contrast checker → · Palette generator →