#309FB3#309FB3

#309FB3 is a light, moderate teal. Relative luminance 0.287; OKLCH L 65.0% C 0.100 H 212.4°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#309FB3
RGB	rgb(48, 159, 179)
HSL	hsl(189, 58%, 45%)
HSV	hsv(189, 73%, 70%)
CMYK	cmyk(73.2%, 11.2%, 0%, 29.8%)
CIE-LAB	lab(60.50, -23.89, -19.29)
CIE-LCH	lch(60.50, 30.71, 218.92°)
OKLab	oklab(65.01% -0.0847 -0.0537)
OKLCH	oklch(65.01% 0.1 212.4)
XYZ	xyz(21.7503, 28.6768, 47.0279)
Luminance	0.2868 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309FB3 #B34430

analogous

#30B385 #309FB3 #305EB3

triadic

#309FB3 #B3309F #9FB330

tetradic

#309FB3 #8530B3 #B34430 #5EB330

square

#309FB3 #8530B3 #B34430 #5EB330

split-complementary

#309FB3 #B3305E #B38530

monochromatic

#164952 #237483 #309FB3 #50BDD0 #80CFDD

Accessibility & contrast

On white

3.12

#309FB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#309FB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309FB3

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309FB3	#FFFFFF	#000000	##000000
##309FB3	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9099B4

Deuteranopia (green-blind)

#7D8CB3

Tritanopia (blue-blind)

#00A7A5

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #309fb3;
/* rgb */ color: rgb(48, 159, 179);
/* oklch */ color: oklch(65.0% 0.100 212.4);

Tailwind

colors: {
  custom: {
    50: '#7cbbc9',
    500: '#309fb3',
    950: '#000000',
  },
}

SCSS

$custom: #309fb3;
$custom-light: #7cbbc9;
$custom-dark: #000000;

JSON

{
  "hex": "#309fb3",
  "rgb": {
    "r": 48,
    "g": 159,
    "b": 179
  },
  "hsl": {
    "h": 189.16,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.65005,
    "c": 0.1003,
    "h": 212.4
  },
  "luminance": 0.28679
}

Semantic roles & 50–950 ramp

primary

#309FB3

secondary

#C68579

accent

#5E47E1

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #309FB3

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

Preview Lab → · Contrast checker → · Palette generator →