#309CB6#309CB6

#309CB6 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.4% C 0.102 H 217.6°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#309CB6
RGB	rgb(48, 156, 182)
HSL	hsl(192, 58%, 45%)
HSV	hsv(192, 74%, 71%)
CMYK	cmyk(73.6%, 14.3%, 0%, 28.6%)
CIE-LAB	lab(59.69, -21.37, -22.21)
CIE-LCH	lch(59.69, 30.83, 226.10°)
OKLab	oklab(64.39% -0.0805 -0.062)
OKLCH	oklch(64.39% 0.102 217.6)
XYZ	xyz(21.5473, 27.7802, 48.4734)
Luminance	0.2778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309CB6 #B64A30

analogous

#30B68D #309CB6 #3059B6

triadic

#309CB6 #B6309C #9CB630

tetradic

#309CB6 #8D30B6 #B64A30 #59B630

square

#309CB6 #8D30B6 #B64A30 #59B630

split-complementary

#309CB6 #B63059 #B68D30

monochromatic

#164955 #237286 #309CB6 #52B9D1 #82CCDE

Accessibility & contrast

On white

3.20

#309CB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#309CB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309CB6

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309CB6	#FFFFFF	#000000	##000000
##309CB6	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B97B7

Deuteranopia (green-blind)

#798AB6

Tritanopia (blue-blind)

#00A5A4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #309cb6;
/* rgb */ color: rgb(48, 156, 182);
/* oklch */ color: oklch(64.4% 0.102 217.6);

Tailwind

colors: {
  custom: {
    50: '#7cb9cc',
    500: '#309cb6',
    950: '#000000',
  },
}

SCSS

$custom: #309cb6;
$custom-light: #7cb9cc;
$custom-dark: #000000;

JSON

{
  "hex": "#309cb6",
  "rgb": {
    "r": 48,
    "g": 156,
    "b": 182
  },
  "hsl": {
    "h": 191.642,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.64393,
    "c": 0.10159,
    "h": 217.6
  },
  "luminance": 0.27783
}

Semantic roles & 50–950 ramp

primary

#309CB6

secondary

#C7897B

accent

#6446E1

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309CB6

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

Preview Lab → · Contrast checker → · Palette generator →