#309DC4#309DC4

#309DC4 is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.3% C 0.111 H 226.7°. Best body text is #000000 at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#309DC4
RGB	rgb(48, 157, 196)
HSL	hsl(196, 61%, 48%)
HSV	hsv(196, 76%, 77%)
CMYK	cmyk(75.5%, 19.9%, 0%, 23.1%)
CIE-LAB	lab(60.54, -17.27, -28.79)
CIE-LCH	lch(60.54, 33.57, 239.04°)
OKLab	oklab(65.26% -0.0761 -0.0808)
OKLCH	oklch(65.26% 0.111 226.7)
XYZ	xyz(23.2356, 28.7251, 56.5337)
Luminance	0.2873 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309DC4 #C45730

analogous

#30C4A1 #309DC4 #3053C4

triadic

#309DC4 #C4309D #9DC430

tetradic

#309DC4 #A130C4 #C45730 #53C430

square

#309DC4 #A130C4 #C45730 #53C430

split-complementary

#309DC4 #C43053 #C4A130

monochromatic

#184E62 #247693 #309DC4 #5AB6D7 #8CCCE3

Accessibility & contrast

On white

3.11

#309DC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.75

#309DC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309DC4

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309DC4	#FFFFFF	#000000	##000000
##309DC4	1.00	3.11	6.75	6.75
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.75	21.00	1.00	1.00
##000000	6.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#889AC6

Deuteranopia (green-blind)

#748CC4

Tritanopia (blue-blind)

#00A8AA

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #309dc4;
/* rgb */ color: rgb(48, 157, 196);
/* oklch */ color: oklch(65.3% 0.111 226.7);

Tailwind

colors: {
  custom: {
    50: '#7ebad6',
    500: '#309dc4',
    950: '#000000',
  },
}

SCSS

$custom: #309dc4;
$custom-light: #7ebad6;
$custom-dark: #000000;

JSON

{
  "hex": "#309dc4",
  "rgb": {
    "r": 48,
    "g": 157,
    "b": 196
  },
  "hsl": {
    "h": 195.811,
    "s": 60.656,
    "l": 47.843
  },
  "oklch": {
    "l": 0.65255,
    "c": 0.11095,
    "h": 226.7
  },
  "luminance": 0.28728
}

Semantic roles & 50–950 ramp

primary

#309DC4

secondary

#CD9683

accent

#6E44E4

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0B1114

muted

#7C8083

Preview Lab

Preview with #309DC4

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

Preview Lab → · Contrast checker → · Palette generator →