#309CBF#309CBF

#309CBF is a light, moderate cyan. Relative luminance 0.282; OKLCH L 64.8% C 0.107 H 224.2°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#309CBF
RGB	rgb(48, 156, 191)
HSL	hsl(195, 60%, 47%)
HSV	hsv(195, 75%, 75%)
CMYK	cmyk(74.9%, 18.3%, 0%, 25.1%)
CIE-LAB	lab(60.04, -18.41, -26.75)
CIE-LCH	lch(60.04, 32.47, 235.47°)
OKLab	oklab(64.79% -0.077 -0.0749)
OKLCH	oklch(64.79% 0.107 224.2)
XYZ	xyz(22.5075, 28.1642, 53.5301)
Luminance	0.2817 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309CBF #BF5330

analogous

#30BF9B #309CBF #3055BF

triadic

#309CBF #BF309C #9CBF30

tetradic

#309CBF #9B30BF #BF5330 #55BF30

square

#309CBF #9B30BF #BF5330 #55BF30

split-complementary

#309CBF #BF3055 #BF9B30

monochromatic

#174C5D #24748E #309CBF #57B6D5 #88CBE1

Accessibility & contrast

On white

3.17

#309CBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.63

#309CBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309CBF

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309CBF	#FFFFFF	#000000	##000000
##309CBF	1.00	3.17	6.63	6.63
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.63	21.00	1.00	1.00
##000000	6.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8899C1

Deuteranopia (green-blind)

#758BBF

Tritanopia (blue-blind)

#00A7A7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #309cbf;
/* rgb */ color: rgb(48, 156, 191);
/* oklch */ color: oklch(64.8% 0.107 224.2);

Tailwind

colors: {
  custom: {
    50: '#7db9d2',
    500: '#309cbf',
    950: '#000000',
  },
}

SCSS

$custom: #309cbf;
$custom-light: #7db9d2;
$custom-dark: #000000;

JSON

{
  "hex": "#309cbf",
  "rgb": {
    "r": 48,
    "g": 156,
    "b": 191
  },
  "hsl": {
    "h": 194.685,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.64787,
    "c": 0.10742,
    "h": 224.2
  },
  "luminance": 0.28167
}

Semantic roles & 50–950 ramp

primary

#309CBF

secondary

#CB9280

accent

#6C45E3

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #309CBF

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

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