#309DC9#309DC9

#309DC9 is a light, moderate cyan. Relative luminance 0.290; OKLCH L 65.5% C 0.115 H 229.8°. Best body text is #000000 at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#309DC9
RGB	rgb(48, 157, 201)
HSL	hsl(197, 61%, 49%)
HSV	hsv(197, 76%, 79%)
CMYK	cmyk(76.1%, 21.9%, 0%, 21.2%)
CIE-LAB	lab(60.74, -15.58, -31.27)
CIE-LCH	lch(60.74, 34.94, 243.52°)
OKLab	oklab(65.49% -0.0742 -0.0879)
OKLCH	oklch(65.49% 0.115 229.8)
XYZ	xyz(23.8142, 28.9565, 59.5811)
Luminance	0.2896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309DC9 #C95C30

analogous

#30C9A9 #309DC9 #3051C9

triadic

#309DC9 #C9309D #9DC930

tetradic

#309DC9 #A930C9 #C95C30 #51C930

square

#309DC9 #A930C9 #C95C30 #51C930

split-complementary

#309DC9 #C93051 #C9A930

monochromatic

#185066 #247698 #309DC9 #5EB5D8 #8FCCE4

Accessibility & contrast

On white

3.09

#309DC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.79

#309DC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309DC9

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309DC9	#FFFFFF	#000000	##000000
##309DC9	1.00	3.09	6.79	6.79
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.79	21.00	1.00	1.00
##000000	6.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#869BCB

Deuteranopia (green-blind)

#728CC8

Tritanopia (blue-blind)

#00A9AC

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #309dc9;
/* rgb */ color: rgb(48, 157, 201);
/* oklch */ color: oklch(65.5% 0.115 229.8);

Tailwind

colors: {
  custom: {
    50: '#7fbad9',
    500: '#309dc9',
    950: '#000000',
  },
}

SCSS

$custom: #309dc9;
$custom-light: #7fbad9;
$custom-dark: #000000;

JSON

{
  "hex": "#309dc9",
  "rgb": {
    "r": 48,
    "g": 157,
    "b": 201
  },
  "hsl": {
    "h": 197.255,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.65486,
    "c": 0.11506,
    "h": 229.8
  },
  "luminance": 0.28959
}

Semantic roles & 50–950 ramp

primary

#309DC9

secondary

#CF9B86

accent

#7243E5

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #309DC9

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

Preview Lab → · Contrast checker → · Palette generator →