#309B99#309B99

#309B99 is a light, moderate teal. Relative luminance 0.264; OKLCH L 63.0% C 0.094 H 193.2°. Best body text is #000000 at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#309B99
RGB	rgb(48, 155, 153)
HSL	hsl(179, 53%, 40%)
HSV	hsv(179, 69%, 61%)
CMYK	cmyk(69%, 0%, 1.3%, 39.2%)
CIE-LAB	lab(58.39, -29.89, -7.75)
CIE-LCH	lch(58.39, 30.87, 194.53°)
OKLab	oklab(63.01% -0.0919 -0.0216)
OKLCH	oklch(63.01% 0.094 193.2)
XYZ	xyz(18.6874, 26.3688, 34.2356)
Luminance	0.2637 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309B99 #9B3032

analogous

#309B64 #309B99 #30679B

triadic

#309B99 #99309B #9B9930

tetradic

#309B99 #64309B #9B3032 #679B30

square

#309B99 #64309B #9B3032 #679B30

split-complementary

#309B99 #9B3067 #9B6430

monochromatic

#133E3D #226C6B #309B99 #43C5C2 #72D3D2

Accessibility & contrast

On white

3.35

#309B99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.27

#309B99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309B99

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309B99	#FFFFFF	#000000	##000000
##309B99	1.00	3.35	6.27	6.27
#FFFFFF	3.35	1.00	21.00	21.00
#000000	6.27	21.00	1.00	1.00
##000000	6.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#919399

Deuteranopia (green-blind)

#81879A

Tritanopia (blue-blind)

#00A09A

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #309b99;
/* rgb */ color: rgb(48, 155, 153);
/* oklch */ color: oklch(63.0% 0.094 193.2);

Tailwind

colors: {
  custom: {
    50: '#78b9b7',
    500: '#309b99',
    950: '#000000',
  },
}

SCSS

$custom: #309b99;
$custom-light: #78b9b7;
$custom-dark: #000000;

JSON

{
  "hex": "#309b99",
  "rgb": {
    "r": 48,
    "g": 155,
    "b": 153
  },
  "hsl": {
    "h": 178.879,
    "s": 52.709,
    "l": 39.804
  },
  "oklch": {
    "l": 0.6301,
    "c": 0.09438,
    "h": 193.2
  },
  "luminance": 0.26371
}

Semantic roles & 50–950 ramp

primary

#309B99

secondary

#BB6C6D

accent

#4C4EDC

background

#F7FBFB

surface

#EEF6F6

border

#C9D0D0

text

#0A1111

muted

#7C8080

Preview Lab

Preview with #309B99

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

Preview Lab → · Contrast checker → · Palette generator →