#309AFF#309AFF

#309AFF is a light, vivid cyan. Relative luminance 0.310; OKLCH L 67.7% C 0.176 H 251.5°. Best body text is #000000 at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#309AFF
RGB	rgb(48, 154, 255)
HSL	hsl(209, 100%, 59%)
HSV	hsv(209, 81%, 100%)
CMYK	cmyk(81.2%, 39.6%, 0%, 0%)
CIE-LAB	lab(62.47, 5.26, -58.42)
CIE-LCH	lch(62.47, 58.66, 275.15°)
OKLab	oklab(67.7% -0.0559 -0.1671)
OKLCH	oklch(67.7% 0.176 251.5)
XYZ	xyz(30.8177, 30.9558, 98.9392)
Luminance	0.3096 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309AFF #FF9530

analogous

#30FFFC #309AFF #3033FF

triadic

#309AFF #FF309A #9AFF30

tetradic

#309AFF #FC30FF #FF9530 #33FF30

square

#309AFF #FC30FF #FF9530 #33FF30

split-complementary

#309AFF #FF3033 #FFFC30

monochromatic

#005CB5 #007CF2 #309AFF #6DB8FF #AAD6FF

Accessibility & contrast

On white

2.92

#309AFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.19

#309AFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #309AFF

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309AFF	#FFFFFF	#000000	##000000
##309AFF	1.00	2.92	7.19	7.19
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.19	21.00	1.00	1.00
##000000	7.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#68A1FF

Deuteranopia (green-blind)

#468FFD

Tritanopia (blue-blind)

#00B2C0

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #309aff;
/* rgb */ color: rgb(48, 154, 255);
/* oklch */ color: oklch(67.7% 0.176 251.5);

Tailwind

colors: {
  custom: {
    50: '#88b7ff',
    500: '#309aff',
    950: '#000000',
  },
}

SCSS

$custom: #309aff;
$custom-light: #88b7ff;
$custom-dark: #000000;

JSON

{
  "hex": "#309aff",
  "rgb": {
    "r": 48,
    "g": 154,
    "b": 255
  },
  "hsl": {
    "h": 209.275,
    "s": 100,
    "l": 59.412
  },
  "oklch": {
    "l": 0.677,
    "c": 0.17617,
    "h": 251.5
  },
  "luminance": 0.3096
}

Semantic roles & 50–950 ramp

primary

#309AFF

secondary

#EEC49D

accent

#9129FF

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0E1118

muted

#7E8086

Preview Lab

Preview with #309AFF

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

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