#309ABB#309ABB

#309ABB is a light, moderate cyan. Relative luminance 0.273; OKLCH L 64.1% C 0.105 H 223.2°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#309ABB
RGB	rgb(48, 154, 187)
HSL	hsl(194, 59%, 46%)
HSV	hsv(194, 74%, 73%)
CMYK	cmyk(74.3%, 17.6%, 0%, 26.7%)
CIE-LAB	lab(59.27, -18.67, -25.67)
CIE-LCH	lch(59.27, 31.75, 233.97°)
OKLab	oklab(64.12% -0.0765 -0.0719)
OKLCH	oklch(64.12% 0.105 223.2)
XYZ	xyz(21.7405, 27.3249, 51.1325)
Luminance	0.2733 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309ABB #BB5130

analogous

#30BB96 #309ABB #3054BB

triadic

#309ABB #BB309A #9ABB30

tetradic

#309ABB #9630BB #BB5130 #54BB30

square

#309ABB #9630BB #BB5130 #54BB30

split-complementary

#309ABB #BB3054 #BB9630

monochromatic

#174A5A #23728A #309ABB #55B5D3 #86CAE0

Accessibility & contrast

On white

3.25

#309ABB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#309ABB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309ABB

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309ABB	#FFFFFF	#000000	##000000
##309ABB	1.00	3.25	6.47	6.47
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8796BD

Deuteranopia (green-blind)

#7489BB

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #309abb;
/* rgb */ color: rgb(48, 154, 187);
/* oklch */ color: oklch(64.1% 0.105 223.2);

Tailwind

colors: {
  custom: {
    50: '#7cb8cf',
    500: '#309abb',
    950: '#000000',
  },
}

SCSS

$custom: #309abb;
$custom-light: #7cb8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#309abb",
  "rgb": {
    "r": 48,
    "g": 154,
    "b": 187
  },
  "hsl": {
    "h": 194.245,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.64123,
    "c": 0.10498,
    "h": 223.2
  },
  "luminance": 0.27327
}

Semantic roles & 50–950 ramp

primary

#309ABB

secondary

#C98F7D

accent

#6B45E2

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309ABB

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

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