#309EB3#309EB3

#309EB3 is a light, moderate teal. Relative luminance 0.283; OKLCH L 64.8% C 0.100 H 213.3°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#309EB3
RGB	rgb(48, 158, 179)
HSL	hsl(190, 58%, 45%)
HSV	hsv(190, 73%, 70%)
CMYK	cmyk(73.2%, 11.7%, 0%, 29.8%)
CIE-LAB	lab(60.19, -23.38, -19.76)
CIE-LCH	lch(60.19, 30.61, 220.20°)
OKLab	oklab(64.76% -0.0837 -0.055)
OKLCH	oklch(64.76% 0.1 213.3)
XYZ	xyz(21.5790, 28.3342, 46.9708)
Luminance	0.2834 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309EB3 #B34530

analogous

#30B386 #309EB3 #305DB3

triadic

#309EB3 #B3309E #9EB330

tetradic

#309EB3 #8630B3 #B34530 #5DB330

square

#309EB3 #8630B3 #B34530 #5DB330

split-complementary

#309EB3 #B3305D #B38630

monochromatic

#164952 #237383 #309EB3 #50BCD0 #80CEDD

Accessibility & contrast

On white

3.15

#309EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#309EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309EB3

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309EB3	#FFFFFF	#000000	##000000
##309EB3	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E99B4

Deuteranopia (green-blind)

#7C8BB3

Tritanopia (blue-blind)

#00A6A4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #309eb3;
/* rgb */ color: rgb(48, 158, 179);
/* oklch */ color: oklch(64.8% 0.100 213.3);

Tailwind

colors: {
  custom: {
    50: '#7cbbc9',
    500: '#309eb3',
    950: '#000000',
  },
}

SCSS

$custom: #309eb3;
$custom-light: #7cbbc9;
$custom-dark: #000000;

JSON

{
  "hex": "#309eb3",
  "rgb": {
    "r": 48,
    "g": 158,
    "b": 179
  },
  "hsl": {
    "h": 189.618,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.64759,
    "c": 0.10018,
    "h": 213.3
  },
  "luminance": 0.28337
}

Semantic roles & 50–950 ramp

primary

#309EB3

secondary

#C68579

accent

#6047E1

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #309EB3

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

Preview Lab → · Contrast checker → · Palette generator →