#1B99A4#1B99A4

#1B99A4 is a light, moderate teal. Relative luminance 0.257; OKLCH L 62.5% C 0.101 H 204.3°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#1B99A4
RGB	rgb(27, 153, 164)
HSL	hsl(185, 72%, 37%)
HSV	hsv(185, 84%, 64%)
CMYK	cmyk(83.5%, 6.7%, 0%, 35.7%)
CIE-LAB	lab(57.74, -27.89, -15.01)
CIE-LCH	lch(57.74, 31.67, 208.29°)
OKLab	oklab(62.5% -0.0925 -0.0418)
OKLCH	oklch(62.5% 0.101 204.3)
XYZ	xyz(18.5410, 25.6934, 39.0969)
Luminance	0.2570 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B99A4 #A4261B

analogous

#1BA46B #1B99A4 #1B54A4

triadic

#1B99A4 #A41B99 #99A41B

tetradic

#1B99A4 #6B1BA4 #A4261B #54A41B

square

#1B99A4 #6B1BA4 #A4261B #54A41B

split-complementary

#1B99A4 #A41B54 #A46B1B

monochromatic

#0A373B #12686F #1B99A4 #24CAD9 #56D8E3

Accessibility & contrast

On white

3.42

#1B99A4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#1B99A4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B99A4

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B99A4	#FFFFFF	#000000	##000000
##1B99A4	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C92A5

Deuteranopia (green-blind)

#7A85A4

Tritanopia (blue-blind)

#00A09C

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #1b99a4;
/* rgb */ color: rgb(27, 153, 164);
/* oklch */ color: oklch(62.5% 0.101 204.3);

Tailwind

colors: {
  custom: {
    50: '#73b7bf',
    500: '#1b99a4',
    950: '#000000',
  },
}

SCSS

$custom: #1b99a4;
$custom-light: #73b7bf;
$custom-dark: #000000;

JSON

{
  "hex": "#1b99a4",
  "rgb": {
    "r": 27,
    "g": 153,
    "b": 164
  },
  "hsl": {
    "h": 184.818,
    "s": 71.728,
    "l": 37.451
  },
  "oklch": {
    "l": 0.62502,
    "c": 0.10147,
    "h": 204.3
  },
  "luminance": 0.25696
}

Semantic roles & 50–950 ramp

primary

#1B99A4

secondary

#C65E54

accent

#4839EE

background

#F7FBFB

surface

#EEF6F6

border

#C9D0D0

text

#0A1112

muted

#7C8081

Preview Lab

Preview with #1B99A4

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

Preview Lab → · Contrast checker → · Palette generator →