#309FC3#309FC3

#309FC3 is a light, moderate cyan. Relative luminance 0.294; OKLCH L 65.7% C 0.110 H 224.4°. Best body text is #000000 at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#309FC3
RGB	rgb(48, 159, 195)
HSL	hsl(195, 60%, 48%)
HSV	hsv(195, 75%, 76%)
CMYK	cmyk(75.4%, 18.5%, 0%, 23.5%)
CIE-LAB	lab(61.10, -18.67, -27.36)
CIE-LCH	lch(61.10, 33.12, 235.69°)
OKLab	oklab(65.69% -0.0784 -0.0767)
OKLCH	oklch(65.69% 0.11 224.4)
XYZ	xyz(23.4633, 29.3620, 56.0500)
Luminance	0.2937 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309FC3 #C35430

analogous

#30C39E #309FC3 #3055C3

triadic

#309FC3 #C3309F #9FC330

tetradic

#309FC3 #9E30C3 #C35430 #55C330

square

#309FC3 #9E30C3 #C35430 #55C330

split-complementary

#309FC3 #C33055 #C39E30

monochromatic

#184F61 #247792 #309FC3 #5AB8D6 #8BCDE2

Accessibility & contrast

On white

3.06

#309FC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.87

#309FC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309FC3

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309FC3	#FFFFFF	#000000	##000000
##309FC3	1.00	3.06	6.87	6.87
#FFFFFF	3.06	1.00	21.00	21.00
#000000	6.87	21.00	1.00	1.00
##000000	6.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B9CC5

Deuteranopia (green-blind)

#778DC3

Tritanopia (blue-blind)

#00AAAB

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #309fc3;
/* rgb */ color: rgb(48, 159, 195);
/* oklch */ color: oklch(65.7% 0.110 224.4);

Tailwind

colors: {
  custom: {
    50: '#7ebbd5',
    500: '#309fc3',
    950: '#000000',
  },
}

SCSS

$custom: #309fc3;
$custom-light: #7ebbd5;
$custom-dark: #000000;

JSON

{
  "hex": "#309fc3",
  "rgb": {
    "r": 48,
    "g": 159,
    "b": 195
  },
  "hsl": {
    "h": 194.694,
    "s": 60.494,
    "l": 47.647
  },
  "oklch": {
    "l": 0.65691,
    "c": 0.10964,
    "h": 224.4
  },
  "luminance": 0.29365
}

Semantic roles & 50–950 ramp

primary

#309FC3

secondary

#CC9482

accent

#6B44E4

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0B1214

muted

#7C8183

Preview Lab

Preview with #309FC3

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

Preview Lab → · Contrast checker → · Palette generator →