#309EB9#309EB9

#309EB9 is a light, moderate cyan. Relative luminance 0.286; OKLCH L 65.0% C 0.103 H 218.1°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#309EB9
RGB	rgb(48, 158, 185)
HSL	hsl(192, 59%, 46%)
HSV	hsv(192, 74%, 73%)
CMYK	cmyk(74.1%, 14.6%, 0%, 27.5%)
CIE-LAB	lab(60.41, -21.44, -22.80)
CIE-LCH	lch(60.41, 31.30, 226.76°)
OKLab	oklab(65.01% -0.0813 -0.0637)
OKLCH	oklch(65.01% 0.103 218.1)
XYZ	xyz(22.1991, 28.5822, 50.2365)
Luminance	0.2858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309EB9 #B94B30

analogous

#30B98F #309EB9 #3059B9

triadic

#309EB9 #B9309E #9EB930

tetradic

#309EB9 #8F30B9 #B94B30 #59B930

square

#309EB9 #8F30B9 #B94B30 #59B930

split-complementary

#309EB9 #B93059 #B98F30

monochromatic

#174B58 #237488 #309EB9 #54BAD3 #84CDDF

Accessibility & contrast

On white

3.13

#309EB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#309EB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309EB9

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309EB9	#FFFFFF	#000000	##000000
##309EB9	1.00	3.13	6.72	6.72
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D99BA

Deuteranopia (green-blind)

#7A8CB9

Tritanopia (blue-blind)

#00A7A7

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #309eb9;
/* rgb */ color: rgb(48, 158, 185);
/* oklch */ color: oklch(65.0% 0.103 218.1);

Tailwind

colors: {
  custom: {
    50: '#7cbbce',
    500: '#309eb9',
    950: '#000000',
  },
}

SCSS

$custom: #309eb9;
$custom-light: #7cbbce;
$custom-dark: #000000;

JSON

{
  "hex": "#309eb9",
  "rgb": {
    "r": 48,
    "g": 158,
    "b": 185
  },
  "hsl": {
    "h": 191.825,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.65011,
    "c": 0.10323,
    "h": 218.1
  },
  "luminance": 0.28585
}

Semantic roles & 50–950 ramp

primary

#309EB9

secondary

#C98B7C

accent

#6546E2

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309EB9

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

Preview Lab → · Contrast checker → · Palette generator →