#309FC4#309FC4

#309FC4 is a light, moderate cyan. Relative luminance 0.294; OKLCH L 65.7% C 0.110 H 225.0°. Best body text is #000000 at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#309FC4
RGB	rgb(48, 159, 196)
HSL	hsl(195, 61%, 48%)
HSV	hsv(195, 76%, 77%)
CMYK	cmyk(75.5%, 18.9%, 0%, 23.1%)
CIE-LAB	lab(61.14, -18.34, -27.86)
CIE-LCH	lch(61.14, 33.35, 236.64°)
OKLab	oklab(65.74% -0.078 -0.0781)
OKLCH	oklch(65.74% 0.11 225)
XYZ	xyz(23.5768, 29.4074, 56.6474)
Luminance	0.2941 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309FC4 #C45530

analogous

#30C49F #309FC4 #3055C4

triadic

#309FC4 #C4309F #9FC430

tetradic

#309FC4 #9F30C4 #C45530 #55C430

square

#309FC4 #9F30C4 #C45530 #55C430

split-complementary

#309FC4 #C43055 #C49F30

monochromatic

#184F62 #247793 #309FC4 #5AB8D7 #8CCDE3

Accessibility & contrast

On white

3.05

#309FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.88

#309FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309FC4

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309FC4	#FFFFFF	#000000	##000000
##309FC4	1.00	3.05	6.88	6.88
#FFFFFF	3.05	1.00	21.00	21.00
#000000	6.88	21.00	1.00	1.00
##000000	6.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B9CC6

Deuteranopia (green-blind)

#778DC4

Tritanopia (blue-blind)

#00AAAB

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #309fc4;
/* rgb */ color: rgb(48, 159, 196);
/* oklch */ color: oklch(65.7% 0.110 225.0);

Tailwind

colors: {
  custom: {
    50: '#7ebbd6',
    500: '#309fc4',
    950: '#000000',
  },
}

SCSS

$custom: #309fc4;
$custom-light: #7ebbd6;
$custom-dark: #000000;

JSON

{
  "hex": "#309fc4",
  "rgb": {
    "r": 48,
    "g": 159,
    "b": 196
  },
  "hsl": {
    "h": 195,
    "s": 60.656,
    "l": 47.843
  },
  "oklch": {
    "l": 0.65736,
    "c": 0.11037,
    "h": 225
  },
  "luminance": 0.2941
}

Semantic roles & 50–950 ramp

primary

#309FC4

secondary

#CD9583

accent

#6C44E4

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0B1214

muted

#7C8183

Preview Lab

Preview with #309FC4

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

Preview Lab → · Contrast checker → · Palette generator →