#309DB6#309DB6

#309DB6 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.6% C 0.102 H 216.7°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#309DB6
RGB	rgb(48, 157, 182)
HSL	hsl(191, 58%, 45%)
HSV	hsv(191, 74%, 71%)
CMYK	cmyk(73.6%, 13.7%, 0%, 28.6%)
CIE-LAB	lab(59.99, -21.89, -21.75)
CIE-LCH	lch(59.99, 30.86, 224.81°)
OKLab	oklab(64.64% -0.0815 -0.0607)
OKLCH	oklch(64.64% 0.102 216.7)
XYZ	xyz(21.7158, 28.1172, 48.5296)
Luminance	0.2812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309DB6 #B64930

analogous

#30B68C #309DB6 #305AB6

triadic

#309DB6 #B6309D #9DB630

tetradic

#309DB6 #8C30B6 #B64930 #5AB630

square

#309DB6 #8C30B6 #B64930 #5AB630

split-complementary

#309DB6 #B6305A #B68C30

monochromatic

#164955 #237386 #309DB6 #52BAD1 #82CDDE

Accessibility & contrast

On white

3.17

#309DB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#309DB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309DB6

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309DB6	#FFFFFF	#000000	##000000
##309DB6	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C98B7

Deuteranopia (green-blind)

#7A8BB6

Tritanopia (blue-blind)

#00A6A5

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #309db6;
/* rgb */ color: rgb(48, 157, 182);
/* oklch */ color: oklch(64.6% 0.102 216.7);

Tailwind

colors: {
  custom: {
    50: '#7cbacc',
    500: '#309db6',
    950: '#000000',
  },
}

SCSS

$custom: #309db6;
$custom-light: #7cbacc;
$custom-dark: #000000;

JSON

{
  "hex": "#309db6",
  "rgb": {
    "r": 48,
    "g": 157,
    "b": 182
  },
  "hsl": {
    "h": 191.194,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.64639,
    "c": 0.10158,
    "h": 216.7
  },
  "luminance": 0.2812
}

Semantic roles & 50–950 ramp

primary

#309DB6

secondary

#C7897B

accent

#6346E1

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309DB6

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

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