#428A15#428A15

#428A15 is a mid, vivid yellow-green. Relative luminance 0.194; OKLCH L 56.5% C 0.161 H 136.9°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#428A15
RGB	rgb(66, 138, 21)
HSL	hsl(97, 74%, 31%)
HSV	hsv(97, 85%, 54%)
CMYK	cmyk(52.2%, 0%, 84.8%, 45.9%)
CIE-LAB	lab(51.14, -42.30, 50.13)
CIE-LCH	lch(51.14, 65.59, 130.16°)
OKLab	oklab(56.48% -0.1177 0.1103)
OKLCH	oklch(56.48% 0.161 136.9)
XYZ	xyz(11.4703, 19.3885, 3.8473)
Luminance	0.1939 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428A15 #5D158A

analogous

#7C8A15 #428A15 #158A22

triadic

#428A15 #15428A #8A1542

tetradic

#428A15 #157C8A #5D158A #8A2215

square

#428A15 #157C8A #5D158A #8A2215

split-complementary

#428A15 #22158A #8A157C

monochromatic

#0F2005 #29550D #428A15 #5BBF1D #79E139

Accessibility & contrast

On white

4.31

#428A15 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#428A15 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428A15

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428A15	#FFFFFF	#000000	##000000
##428A15	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7D00

Deuteranopia (green-blind)

#867824

Tritanopia (blue-blind)

#3E8575

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #428a15;
/* rgb */ color: rgb(66, 138, 21);
/* oklch */ color: oklch(56.5% 0.161 136.9);

Tailwind

colors: {
  custom: {
    50: '#7ead5f',
    500: '#428a15',
    950: '#000000',
  },
}

SCSS

$custom: #428a15;
$custom-light: #7ead5f;
$custom-dark: #000000;

JSON

{
  "hex": "#428a15",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 21
  },
  "hsl": {
    "h": 96.923,
    "s": 73.585,
    "l": 31.176
  },
  "oklch": {
    "l": 0.56478,
    "c": 0.16128,
    "h": 136.9
  },
  "luminance": 0.19389
}

Semantic roles & 50–950 ramp

primary

#428A15

secondary

#8C3DBE

accent

#38F0A9

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0B1005

muted

#7C7F79

Preview Lab

Preview with #428A15

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

Preview Lab → · Contrast checker → · Palette generator →