#428D10#428D10

#428D10 is a mid, vivid yellow-green. Relative luminance 0.202; OKLCH L 57.3% C 0.167 H 136.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#428D10
RGB	rgb(66, 141, 16)
HSL	hsl(96, 80%, 31%)
HSV	hsv(96, 89%, 55%)
CMYK	cmyk(53.2%, 0%, 88.7%, 44.7%)
CIE-LAB	lab(52.11, -43.70, 52.23)
CIE-LCH	lch(52.11, 68.10, 129.92°)
OKLab	oklab(57.27% -0.1217 0.114)
OKLCH	oklch(57.27% 0.167 136.9)
XYZ	xyz(11.8648, 20.2445, 3.7725)
Luminance	0.2024 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D10 #5B108D

analogous

#808D10 #428D10 #108D1C

triadic

#428D10 #10428D #8D1042

tetradic

#428D10 #10808D #5B108D #8D1C10

square

#428D10 #10808D #5B108D #8D1C10

split-complementary

#428D10 #1C108D #8D1080

monochromatic

#0F1F04 #28560A #428D10 #5CC416 #79E730

Accessibility & contrast

On white

4.16

#428D10 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#428D10 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D10

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D10	#FFFFFF	#000000	##000000
##428D10	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928000

Deuteranopia (green-blind)

#887A22

Tritanopia (blue-blind)

#3D8877

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428d10;
/* rgb */ color: rgb(66, 141, 16);
/* oklch */ color: oklch(57.3% 0.167 136.9);

Tailwind

colors: {
  custom: {
    50: '#7faf5e',
    500: '#428d10',
    950: '#000000',
  },
}

SCSS

$custom: #428d10;
$custom-light: #7faf5e;
$custom-dark: #000000;

JSON

{
  "hex": "#428d10",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 16
  },
  "hsl": {
    "h": 96,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.57274,
    "c": 0.16673,
    "h": 136.9
  },
  "luminance": 0.20245
}

Semantic roles & 50–950 ramp

primary

#428D10

secondary

#8A37C2

accent

#32F6A8

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0B1005

muted

#7C7F79

Preview Lab

Preview with #428D10

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

Preview Lab → · Contrast checker → · Palette generator →