#309AB7#309AB7

#309AB7 is a light, moderate cyan. Relative luminance 0.272; OKLCH L 63.9% C 0.102 H 220.3°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#309AB7
RGB	rgb(48, 154, 183)
HSL	hsl(193, 58%, 45%)
HSV	hsv(193, 74%, 72%)
CMYK	cmyk(73.8%, 15.8%, 0%, 28.2%)
CIE-LAB	lab(59.12, -20.00, -23.65)
CIE-LCH	lch(59.12, 30.97, 229.79°)
OKLab	oklab(63.95% -0.0781 -0.0661)
OKLCH	oklch(63.95% 0.102 220.3)
XYZ	xyz(21.3182, 27.1560, 48.9086)
Luminance	0.2716 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309AB7 #B74D30

analogous

#30B791 #309AB7 #3056B7

triadic

#309AB7 #B7309A #9AB730

tetradic

#309AB7 #9130B7 #B74D30 #56B730

square

#309AB7 #9130B7 #B74D30 #56B730

split-complementary

#309AB7 #B73056 #B79130

monochromatic

#174856 #237187 #309AB7 #52B6D2 #83CBDE

Accessibility & contrast

On white

3.27

#309AB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#309AB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309AB7

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309AB7	#FFFFFF	#000000	##000000
##309AB7	1.00	3.27	6.43	6.43
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8896B9

Deuteranopia (green-blind)

#7688B7

Tritanopia (blue-blind)

#00A3A3

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #309ab7;
/* rgb */ color: rgb(48, 154, 183);
/* oklch */ color: oklch(63.9% 0.102 220.3);

Tailwind

colors: {
  custom: {
    50: '#7cb8cc',
    500: '#309ab7',
    950: '#000000',
  },
}

SCSS

$custom: #309ab7;
$custom-light: #7cb8cc;
$custom-dark: #000000;

JSON

{
  "hex": "#309ab7",
  "rgb": {
    "r": 48,
    "g": 154,
    "b": 183
  },
  "hsl": {
    "h": 192.889,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.63947,
    "c": 0.10231,
    "h": 220.3
  },
  "luminance": 0.27158
}

Semantic roles & 50–950 ramp

primary

#309AB7

secondary

#C88C7B

accent

#6846E2

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309AB7

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

Preview Lab → · Contrast checker → · Palette generator →