#309FBA#309FBA

#309FBA is a light, moderate cyan. Relative luminance 0.290; OKLCH L 65.3% C 0.104 H 217.9°. Best body text is #000000 at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#309FBA
RGB	rgb(48, 159, 186)
HSL	hsl(192, 59%, 46%)
HSV	hsv(192, 74%, 73%)
CMYK	cmyk(74.2%, 14.5%, 0%, 27.1%)
CIE-LAB	lab(60.75, -21.64, -22.84)
CIE-LCH	lch(60.75, 31.46, 226.55°)
OKLab	oklab(65.3% -0.0819 -0.0638)
OKLCH	oklch(65.3% 0.104 217.9)
XYZ	xyz(22.4763, 28.9672, 50.8515)
Luminance	0.2897 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309FBA #BA4B30

analogous

#30BA90 #309FBA #305ABA

triadic

#309FBA #BA309F #9FBA30

tetradic

#309FBA #9030BA #BA4B30 #5ABA30

square

#309FBA #9030BA #BA4B30 #5ABA30

split-complementary

#309FBA #BA305A #BA9030

monochromatic

#174C59 #237589 #309FBA #54BAD3 #85CEDF

Accessibility & contrast

On white

3.09

#309FBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.79

#309FBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309FBA

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309FBA	#FFFFFF	#000000	##000000
##309FBA	1.00	3.09	6.79	6.79
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.79	21.00	1.00	1.00
##000000	6.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E9ABB

Deuteranopia (green-blind)

#7B8DBA

Tritanopia (blue-blind)

#00A8A8

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #309fba;
/* rgb */ color: rgb(48, 159, 186);
/* oklch */ color: oklch(65.3% 0.104 217.9);

Tailwind

colors: {
  custom: {
    50: '#7dbbce',
    500: '#309fba',
    950: '#000000',
  },
}

SCSS

$custom: #309fba;
$custom-light: #7dbbce;
$custom-dark: #000000;

JSON

{
  "hex": "#309fba",
  "rgb": {
    "r": 48,
    "g": 159,
    "b": 186
  },
  "hsl": {
    "h": 191.739,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.65298,
    "c": 0.10378,
    "h": 217.9
  },
  "luminance": 0.2897
}

Semantic roles & 50–950 ramp

primary

#309FBA

secondary

#C98C7D

accent

#6446E2

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #309FBA

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

Preview Lab → · Contrast checker → · Palette generator →