#309EBC#309EBC

#309EBC is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.1% C 0.105 H 220.3°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#309EBC
RGB	rgb(48, 158, 188)
HSL	hsl(193, 59%, 46%)
HSV	hsv(193, 74%, 74%)
CMYK	cmyk(74.5%, 16%, 0%, 26.3%)
CIE-LAB	lab(60.53, -20.46, -24.31)
CIE-LCH	lch(60.53, 31.78, 229.92°)
OKLab	oklab(65.14% -0.0801 -0.068)
OKLCH	oklch(65.14% 0.105 220.3)
XYZ	xyz(22.5191, 28.7103, 51.9220)
Luminance	0.2871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309EBC #BC4E30

analogous

#30BC94 #309EBC #3058BC

triadic

#309EBC #BC309E #9EBC30

tetradic

#309EBC #9430BC #BC4E30 #58BC30

square

#309EBC #9430BC #BC4E30 #58BC30

split-complementary

#309EBC #BC3058 #BC9430

monochromatic

#174C5A #24758B #309EBC #55B9D4 #86CDE0

Accessibility & contrast

On white

3.11

#309EBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#309EBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309EBC

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309EBC	#FFFFFF	#000000	##000000
##309EBC	1.00	3.11	6.74	6.74
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C9ABE

Deuteranopia (green-blind)

#798CBC

Tritanopia (blue-blind)

#00A8A8

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #309ebc;
/* rgb */ color: rgb(48, 158, 188);
/* oklch */ color: oklch(65.1% 0.105 220.3);

Tailwind

colors: {
  custom: {
    50: '#7dbad0',
    500: '#309ebc',
    950: '#000000',
  },
}

SCSS

$custom: #309ebc;
$custom-light: #7dbad0;
$custom-dark: #000000;

JSON

{
  "hex": "#309ebc",
  "rgb": {
    "r": 48,
    "g": 158,
    "b": 188
  },
  "hsl": {
    "h": 192.857,
    "s": 59.322,
    "l": 46.275
  },
  "oklch": {
    "l": 0.6514,
    "c": 0.10504,
    "h": 220.3
  },
  "luminance": 0.28713
}

Semantic roles & 50–950 ramp

primary

#309EBC

secondary

#CA8E7E

accent

#6745E3

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #309EBC

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

Preview Lab → · Contrast checker → · Palette generator →