#309B57#309B57

#309B57 is a mid, vivid green. Relative luminance 0.248; OKLCH L 61.2% C 0.140 H 151.6°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#309B57
RGB	rgb(48, 155, 87)
HSL	hsl(142, 53%, 40%)
HSV	hsv(142, 69%, 61%)
CMYK	cmyk(69%, 0%, 43.9%, 39.2%)
CIE-LAB	lab(56.84, -45.82, 27.05)
CIE-LCH	lch(56.84, 53.21, 149.45°)
OKLab	oklab(61.23% -0.1235 0.0668)
OKLCH	oklch(61.23% 0.14 151.6)
XYZ	xyz(14.6594, 24.7576, 13.0211)
Luminance	0.2476 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#309B57 #9B3074

analogous

#3F9B30 #309B57 #309B8C

triadic

#309B57 #57309B #9B5730

tetradic

#309B57 #303F9B #9B3074 #9B8C30

square

#309B57 #303F9B #9B3074 #9B8C30

split-complementary

#309B57 #8C309B #9B303F

monochromatic

#133E23 #226C3D #309B57 #43C573 #72D396

Accessibility & contrast

On white

3.53

#309B57 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.95

#309B57 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309B57

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##309B57	#FFFFFF	#000000	##000000
##309B57	1.00	3.53	5.95	5.95
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.95	21.00	1.00	1.00
##000000	5.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9B8E52

Deuteranopia (green-blind)

#8E855C

Tritanopia (blue-blind)

#00998A

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #309b57;
/* rgb */ color: rgb(48, 155, 87);
/* oklch */ color: oklch(61.2% 0.140 151.6);

Tailwind

colors: {
  custom: {
    50: '#76b987',
    500: '#309b57',
    950: '#000000',
  },
}

SCSS

$custom: #309b57;
$custom-light: #76b987;
$custom-dark: #000000;

JSON

{
  "hex": "#309b57",
  "rgb": {
    "r": 48,
    "g": 155,
    "b": 87
  },
  "hsl": {
    "h": 141.869,
    "s": 52.709,
    "l": 39.804
  },
  "oklch": {
    "l": 0.61234,
    "c": 0.14043,
    "h": 151.6
  },
  "luminance": 0.24759
}

Semantic roles & 50–950 ramp

primary

#309B57

secondary

#BB6C9E

accent

#4CA7DC

background

#F7FBF8

surface

#EEF6EF

border

#C9D0CA

text

#0A120B

muted

#7C817C

Preview Lab

Preview with #309B57

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

Preview Lab → · Contrast checker → · Palette generator →