#309CBA#309CBA

#309CBA is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.6% C 0.104 H 220.7°. Best body text is #000000 at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#309CBA
RGB	rgb(48, 156, 186)
HSL	hsl(193, 59%, 46%)
HSV	hsv(193, 74%, 73%)
CMYK	cmyk(74.2%, 16.1%, 0%, 27.1%)
CIE-LAB	lab(59.84, -20.06, -24.24)
CIE-LCH	lch(59.84, 31.46, 230.38°)
OKLab	oklab(64.57% -0.0789 -0.0678)
OKLCH	oklch(64.57% 0.104 220.7)
XYZ	xyz(21.9666, 27.9479, 50.6816)
Luminance	0.2795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309CBA #BA4E30

analogous

#30BA93 #309CBA #3057BA

triadic

#309CBA #BA309C #9CBA30

tetradic

#309CBA #9330BA #BA4E30 #57BA30

square

#309CBA #9330BA #BA4E30 #57BA30

split-complementary

#309CBA #BA3057 #BA9330

monochromatic

#174A59 #237389 #309CBA #54B7D3 #85CCDF

Accessibility & contrast

On white

3.19

#309CBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.59

#309CBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309CBA

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309CBA	#FFFFFF	#000000	##000000
##309CBA	1.00	3.19	6.59	6.59
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.59	21.00	1.00	1.00
##000000	6.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A98BC

Deuteranopia (green-blind)

#778ABA

Tritanopia (blue-blind)

#00A6A6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #309cba;
/* rgb */ color: rgb(48, 156, 186);
/* oklch */ color: oklch(64.6% 0.104 220.7);

Tailwind

colors: {
  custom: {
    50: '#7cb9ce',
    500: '#309cba',
    950: '#000000',
  },
}

SCSS

$custom: #309cba;
$custom-light: #7cb9ce;
$custom-dark: #000000;

JSON

{
  "hex": "#309cba",
  "rgb": {
    "r": 48,
    "g": 156,
    "b": 186
  },
  "hsl": {
    "h": 193.043,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.64566,
    "c": 0.104,
    "h": 220.7
  },
  "luminance": 0.2795
}

Semantic roles & 50–950 ramp

primary

#309CBA

secondary

#C98D7D

accent

#6846E2

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309CBA

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

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