#428D15#428D15

#428D15 is a mid, vivid yellow-green. Relative luminance 0.203; OKLCH L 57.3% C 0.165 H 137.1°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#428D15
RGB	rgb(66, 141, 21)
HSL	hsl(98, 74%, 32%)
HSV	hsv(98, 85%, 55%)
CMYK	cmyk(53.2%, 0%, 85.1%, 44.7%)
CIE-LAB	lab(52.13, -43.49, 51.02)
CIE-LCH	lch(52.13, 67.04, 130.44°)
OKLab	oklab(57.3% -0.1209 0.1121)
OKLCH	oklch(57.3% 0.165 137.1)
XYZ	xyz(11.9066, 20.2613, 3.9927)
Luminance	0.2026 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D15 #60158D

analogous

#7E8D15 #428D15 #158D24

triadic

#428D15 #15428D #8D1542

tetradic

#428D15 #157E8D #60158D #8D2415

square

#428D15 #157E8D #60158D #8D2415

split-complementary

#428D15 #24158D #8D157E

monochromatic

#102205 #29580D #428D15 #5BC21D #79E23B

Accessibility & contrast

On white

4.16

#428D15 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#428D15 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D15

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D15	#FFFFFF	#000000	##000000
##428D15	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)

#887A24

Tritanopia (blue-blind)

#3D8878

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428d15;
/* rgb */ color: rgb(66, 141, 21);
/* oklch */ color: oklch(57.3% 0.165 137.1);

Tailwind

colors: {
  custom: {
    50: '#7faf5f',
    500: '#428d15',
    950: '#000000',
  },
}

SCSS

$custom: #428d15;
$custom-light: #7faf5f;
$custom-dark: #000000;

JSON

{
  "hex": "#428d15",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 21
  },
  "hsl": {
    "h": 97.5,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.57296,
    "c": 0.16488,
    "h": 137.1
  },
  "luminance": 0.20262
}

Semantic roles & 50–950 ramp

primary

#428D15

secondary

#8F3DC1

accent

#37F1AB

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0B1005

muted

#7C7F79

Preview Lab

Preview with #428D15

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

Preview Lab → · Contrast checker → · Palette generator →