#309AB1#309AB1

#309AB1 is a light, moderate cyan. Relative luminance 0.269; OKLCH L 63.7% C 0.099 H 215.5°. Best body text is #000000 at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#309AB1
RGB	rgb(48, 154, 177)
HSL	hsl(191, 57%, 44%)
HSV	hsv(191, 73%, 69%)
CMYK	cmyk(72.9%, 13%, 0%, 30.6%)
CIE-LAB	lab(58.89, -21.95, -20.61)
CIE-LCH	lch(58.89, 30.11, 223.19°)
OKLab	oklab(63.69% -0.0805 -0.0574)
OKLCH	oklch(63.69% 0.099 215.5)
XYZ	xyz(20.7070, 26.9115, 45.6896)
Luminance	0.2691 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309AB1 #B14730

analogous

#30B188 #309AB1 #305AB1

triadic

#309AB1 #B1309A #9AB130

tetradic

#309AB1 #8830B1 #B14730 #5AB130

square

#309AB1 #8830B1 #B14730 #5AB130

split-complementary

#309AB1 #B1305A #B18830

monochromatic

#164651 #237081 #309AB1 #4FB8CF #7FCCDC

Accessibility & contrast

On white

3.29

#309AB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.38

#309AB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309AB1

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309AB1	#FFFFFF	#000000	##000000
##309AB1	1.00	3.29	6.38	6.38
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.38	21.00	1.00	1.00
##000000	6.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A95B2

Deuteranopia (green-blind)

#7888B1

Tritanopia (blue-blind)

#00A2A1

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #309ab1;
/* rgb */ color: rgb(48, 154, 177);
/* oklch */ color: oklch(63.7% 0.099 215.5);

Tailwind

colors: {
  custom: {
    50: '#7bb8c8',
    500: '#309ab1',
    950: '#000000',
  },
}

SCSS

$custom: #309ab1;
$custom-light: #7bb8c8;
$custom-dark: #000000;

JSON

{
  "hex": "#309ab1",
  "rgb": {
    "r": 48,
    "g": 154,
    "b": 177
  },
  "hsl": {
    "h": 190.698,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.6369,
    "c": 0.09888,
    "h": 215.5
  },
  "luminance": 0.26914
}

Semantic roles & 50–950 ramp

primary

#309AB1

secondary

#C58578

accent

#6347E1

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309AB1

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

Preview Lab → · Contrast checker → · Palette generator →