#309DC3#309DC3

#309DC3 is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.2% C 0.110 H 226.1°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#309DC3
RGB	rgb(48, 157, 195)
HSL	hsl(196, 60%, 48%)
HSV	hsv(196, 75%, 76%)
CMYK	cmyk(75.4%, 19.5%, 0%, 23.5%)
CIE-LAB	lab(60.50, -17.60, -28.29)
CIE-LCH	lch(60.50, 33.32, 238.10°)
OKLab	oklab(65.21% -0.0764 -0.0793)
OKLCH	oklch(65.21% 0.11 226.1)
XYZ	xyz(23.1222, 28.6797, 55.9363)
Luminance	0.2868 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309DC3 #C35630

analogous

#30C39F #309DC3 #3054C3

triadic

#309DC3 #C3309D #9DC330

tetradic

#309DC3 #9F30C3 #C35630 #54C330

square

#309DC3 #9F30C3 #C35630 #54C330

split-complementary

#309DC3 #C33054 #C39F30

monochromatic

#184E61 #247592 #309DC3 #5AB6D6 #8BCCE2

Accessibility & contrast

On white

3.12

#309DC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#309DC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309DC3

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309DC3	#FFFFFF	#000000	##000000
##309DC3	1.00	3.12	6.74	6.74
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#889AC5

Deuteranopia (green-blind)

#758CC3

Tritanopia (blue-blind)

#00A8A9

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #309dc3;
/* rgb */ color: rgb(48, 157, 195);
/* oklch */ color: oklch(65.2% 0.110 226.1);

Tailwind

colors: {
  custom: {
    50: '#7ebad5',
    500: '#309dc3',
    950: '#000000',
  },
}

SCSS

$custom: #309dc3;
$custom-light: #7ebad5;
$custom-dark: #000000;

JSON

{
  "hex": "#309dc3",
  "rgb": {
    "r": 48,
    "g": 157,
    "b": 195
  },
  "hsl": {
    "h": 195.51,
    "s": 60.494,
    "l": 47.647
  },
  "oklch": {
    "l": 0.65209,
    "c": 0.11016,
    "h": 226.1
  },
  "luminance": 0.28682
}

Semantic roles & 50–950 ramp

primary

#309DC3

secondary

#CC9582

accent

#6D44E4

background

#F8FBFD

surface

#EFF6FA

border

#CAD0D3

text

#0B1114

muted

#7C8083

Preview Lab

Preview with #309DC3

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

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