#309DAB#309DAB

#309DAB is a light, moderate teal. Relative luminance 0.277; OKLCH L 64.2% C 0.097 H 207.5°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#309DAB
RGB	rgb(48, 157, 171)
HSL	hsl(187, 56%, 43%)
HSV	hsv(187, 72%, 67%)
CMYK	cmyk(71.9%, 8.2%, 0%, 32.9%)
CIE-LAB	lab(59.60, -25.40, -16.14)
CIE-LCH	lch(59.60, 30.10, 212.43°)
OKLab	oklab(64.19% -0.086 -0.0448)
OKLCH	oklch(64.19% 0.097 207.5)
XYZ	xyz(20.6234, 27.6802, 42.7761)
Luminance	0.2768 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309DAB #AB3E30

analogous

#30AB7B #309DAB #3060AB

triadic

#309DAB #AB309D #9DAB30

tetradic

#309DAB #7B30AB #AB3E30 #60AB30

square

#309DAB #7B30AB #AB3E30 #60AB30

split-complementary

#309DAB #AB3060 #AB7B30

monochromatic

#15454B #23717B #309DAB #4CBECD #7BCFDA

Accessibility & contrast

On white

3.21

#309DAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#309DAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309DAB

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309DAB	#FFFFFF	#000000	##000000
##309DAB	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F97AC

Deuteranopia (green-blind)

#7E8AAB

Tritanopia (blue-blind)

#00A4A1

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #309dab;
/* rgb */ color: rgb(48, 157, 171);
/* oklch */ color: oklch(64.2% 0.097 207.5);

Tailwind

colors: {
  custom: {
    50: '#7bbac4',
    500: '#309dab',
    950: '#000000',
  },
}

SCSS

$custom: #309dab;
$custom-light: #7bbac4;
$custom-dark: #000000;

JSON

{
  "hex": "#309dab",
  "rgb": {
    "r": 48,
    "g": 157,
    "b": 171
  },
  "hsl": {
    "h": 186.829,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.64188,
    "c": 0.09701,
    "h": 207.5
  },
  "luminance": 0.27683
}

Semantic roles & 50–950 ramp

primary

#309DAB

secondary

#C37D74

accent

#5A48DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1112

muted

#7C8081

Preview Lab

Preview with #309DAB

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

Preview Lab → · Contrast checker → · Palette generator →