#309FBF#309FBF

#309FBF is a light, moderate cyan. Relative luminance 0.292; OKLCH L 65.5% C 0.107 H 221.6°. Best body text is #000000 at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#309FBF
RGB	rgb(48, 159, 191)
HSL	hsl(193, 60%, 47%)
HSV	hsv(193, 75%, 75%)
CMYK	cmyk(74.9%, 16.8%, 0%, 25.1%)
CIE-LAB	lab(60.94, -20.00, -25.36)
CIE-LCH	lch(60.94, 32.29, 231.74°)
OKLab	oklab(65.51% -0.0799 -0.0709)
OKLCH	oklch(65.51% 0.107 221.6)
XYZ	xyz(23.0171, 29.1835, 53.7000)
Luminance	0.2919 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309FBF #BF5030

analogous

#30BF98 #309FBF #3057BF

triadic

#309FBF #BF309F #9FBF30

tetradic

#309FBF #9830BF #BF5030 #57BF30

square

#309FBF #9830BF #BF5030 #57BF30

split-complementary

#309FBF #BF3057 #BF9830

monochromatic

#174E5D #24768E #309FBF #57B9D5 #88CDE1

Accessibility & contrast

On white

3.07

#309FBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.84

#309FBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309FBF

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309FBF	#FFFFFF	#000000	##000000
##309FBF	1.00	3.07	6.84	6.84
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.84	21.00	1.00	1.00
##000000	6.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C9BC1

Deuteranopia (green-blind)

#798DBF

Tritanopia (blue-blind)

#00A9A9

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #309fbf;
/* rgb */ color: rgb(48, 159, 191);
/* oklch */ color: oklch(65.5% 0.107 221.6);

Tailwind

colors: {
  custom: {
    50: '#7dbbd2',
    500: '#309fbf',
    950: '#000000',
  },
}

SCSS

$custom: #309fbf;
$custom-light: #7dbbd2;
$custom-dark: #000000;

JSON

{
  "hex": "#309fbf",
  "rgb": {
    "r": 48,
    "g": 159,
    "b": 191
  },
  "hsl": {
    "h": 193.427,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.65514,
    "c": 0.10685,
    "h": 221.6
  },
  "luminance": 0.29186
}

Semantic roles & 50–950 ramp

primary

#309FBF

secondary

#CB9180

accent

#6845E3

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1214

muted

#7C8182

Preview Lab

Preview with #309FBF

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

Preview Lab → · Contrast checker → · Palette generator →