#309BBA#309BBA

#309BBA is a light, moderate cyan. Relative luminance 0.276; OKLCH L 64.3% C 0.104 H 221.6°. Best body text is #000000 at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#309BBA
RGB	rgb(48, 155, 186)
HSL	hsl(193, 59%, 46%)
HSV	hsv(193, 74%, 73%)
CMYK	cmyk(74.2%, 16.7%, 0%, 27.1%)
CIE-LAB	lab(59.54, -19.54, -24.70)
CIE-LCH	lch(59.54, 31.49, 231.66°)
OKLab	oklab(64.32% -0.0779 -0.0691)
OKLCH	oklch(64.32% 0.104 221.6)
XYZ	xyz(21.7995, 27.6137, 50.6259)
Luminance	0.2762 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309BBA #BA4F30

analogous

#30BA94 #309BBA #3056BA

triadic

#309BBA #BA309B #9BBA30

tetradic

#309BBA #9430BA #BA4F30 #56BA30

square

#309BBA #9430BA #BA4F30 #56BA30

split-complementary

#309BBA #BA3056 #BA9430

monochromatic

#174A59 #237289 #309BBA #54B6D3 #85CBDF

Accessibility & contrast

On white

3.22

#309BBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.52

#309BBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309BBA

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309BBA	#FFFFFF	#000000	##000000
##309BBA	1.00	3.22	6.52	6.52
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.52	21.00	1.00	1.00
##000000	6.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8997BC

Deuteranopia (green-blind)

#7689BA

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #309bba;
/* rgb */ color: rgb(48, 155, 186);
/* oklch */ color: oklch(64.3% 0.104 221.6);

Tailwind

colors: {
  custom: {
    50: '#7cb8ce',
    500: '#309bba',
    950: '#000000',
  },
}

SCSS

$custom: #309bba;
$custom-light: #7cb8ce;
$custom-dark: #000000;

JSON

{
  "hex": "#309bba",
  "rgb": {
    "r": 48,
    "g": 155,
    "b": 186
  },
  "hsl": {
    "h": 193.478,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.64322,
    "c": 0.10412,
    "h": 221.6
  },
  "luminance": 0.27616
}

Semantic roles & 50–950 ramp

primary

#309BBA

secondary

#C98E7D

accent

#6946E2

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309BBA

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

Preview Lab → · Contrast checker → · Palette generator →