#309BC3#309BC3

#309BC3 is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.7% C 0.111 H 227.8°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#309BC3
RGB	rgb(48, 155, 195)
HSL	hsl(196, 60%, 48%)
HSV	hsv(196, 75%, 76%)
CMYK	cmyk(75.4%, 20.5%, 0%, 23.5%)
CIE-LAB	lab(59.90, -16.53, -29.22)
CIE-LCH	lch(59.90, 33.57, 240.50°)
OKLab	oklab(64.73% -0.0745 -0.082)
OKLCH	oklch(64.73% 0.111 227.8)
XYZ	xyz(22.7866, 28.0085, 55.8244)
Luminance	0.2801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309BC3 #C35830

analogous

#30C3A2 #309BC3 #3051C3

triadic

#309BC3 #C3309B #9BC330

tetradic

#309BC3 #A230C3 #C35830 #51C330

square

#309BC3 #A230C3 #C35830 #51C330

split-complementary

#309BC3 #C33051 #C3A230

monochromatic

#184D61 #247492 #309BC3 #5AB4D6 #8BCBE2

Accessibility & contrast

On white

3.18

#309BC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#309BC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309BC3

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309BC3	#FFFFFF	#000000	##000000
##309BC3	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8698C5

Deuteranopia (green-blind)

#728AC2

Tritanopia (blue-blind)

#00A6A8

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #309bc3;
/* rgb */ color: rgb(48, 155, 195);
/* oklch */ color: oklch(64.7% 0.111 227.8);

Tailwind

colors: {
  custom: {
    50: '#7eb8d5',
    500: '#309bc3',
    950: '#000000',
  },
}

SCSS

$custom: #309bc3;
$custom-light: #7eb8d5;
$custom-dark: #000000;

JSON

{
  "hex": "#309bc3",
  "rgb": {
    "r": 48,
    "g": 155,
    "b": 195
  },
  "hsl": {
    "h": 196.327,
    "s": 60.494,
    "l": 47.647
  },
  "oklch": {
    "l": 0.64728,
    "c": 0.1108,
    "h": 227.8
  },
  "luminance": 0.28011
}

Semantic roles & 50–950 ramp

primary

#309BC3

secondary

#CC9682

accent

#7044E4

background

#F8FBFD

surface

#EFF6FA

border

#CAD0D3

text

#0B1114

muted

#7C8083

Preview Lab

Preview with #309BC3

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

Preview Lab → · Contrast checker → · Palette generator →