#309FB7#309FB7

#309FB7 is a light, moderate cyan. Relative luminance 0.288; OKLCH L 65.2% C 0.102 H 215.6°. Best body text is #000000 at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#309FB7
RGB	rgb(48, 159, 183)
HSL	hsl(191, 58%, 45%)
HSV	hsv(191, 74%, 72%)
CMYK	cmyk(73.8%, 13.1%, 0%, 28.2%)
CIE-LAB	lab(60.64, -22.61, -21.32)
CIE-LCH	lch(60.64, 31.08, 223.32°)
OKLab	oklab(65.17% -0.0831 -0.0595)
OKLCH	oklch(65.17% 0.102 215.6)
XYZ	xyz(22.1607, 28.8409, 49.1895)
Luminance	0.2884 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309FB7 #B74830

analogous

#30B78C #309FB7 #305BB7

triadic

#309FB7 #B7309F #9FB730

tetradic

#309FB7 #8C30B7 #B74830 #5BB730

square

#309FB7 #8C30B7 #B74830 #5BB730

split-complementary

#309FB7 #B7305B #B78C30

monochromatic

#174B56 #237587 #309FB7 #52BBD2 #83CEDE

Accessibility & contrast

On white

3.10

#309FB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.77

#309FB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309FB7

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309FB7	#FFFFFF	#000000	##000000
##309FB7	1.00	3.10	6.77	6.77
#FFFFFF	3.10	1.00	21.00	21.00
#000000	6.77	21.00	1.00	1.00
##000000	6.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E9AB8

Deuteranopia (green-blind)

#7C8CB7

Tritanopia (blue-blind)

#00A8A6

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #309fb7;
/* rgb */ color: rgb(48, 159, 183);
/* oklch */ color: oklch(65.2% 0.102 215.6);

Tailwind

colors: {
  custom: {
    50: '#7cbbcc',
    500: '#309fb7',
    950: '#000000',
  },
}

SCSS

$custom: #309fb7;
$custom-light: #7cbbcc;
$custom-dark: #000000;

JSON

{
  "hex": "#309fb7",
  "rgb": {
    "r": 48,
    "g": 159,
    "b": 183
  },
  "hsl": {
    "h": 190.667,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.65171,
    "c": 0.10216,
    "h": 215.6
  },
  "luminance": 0.28844
}

Semantic roles & 50–950 ramp

primary

#309FB7

secondary

#C8897B

accent

#6246E2

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #309FB7

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

Preview Lab → · Contrast checker → · Palette generator →