#428E15#428E15

#428E15 is a mid, vivid yellow-green. Relative luminance 0.206; OKLCH L 57.6% C 0.166 H 137.2°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#428E15
RGB	rgb(66, 142, 21)
HSL	hsl(98, 74%, 32%)
HSV	hsv(98, 85%, 56%)
CMYK	cmyk(53.5%, 0%, 85.2%, 44.3%)
CIE-LAB	lab(52.46, -43.88, 51.32)
CIE-LCH	lch(52.46, 67.52, 130.53°)
OKLab	oklab(57.57% -0.1219 0.1128)
OKLCH	oklch(57.57% 0.166 137.2)
XYZ	xyz(12.0547, 20.5575, 4.0421)
Luminance	0.2056 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428E15 #61158E

analogous

#7F8E15 #428E15 #158E25

triadic

#428E15 #15428E #8E1542

tetradic

#428E15 #157F8E #61158E #8E2515

square

#428E15 #157F8E #61158E #8E2515

split-complementary

#428E15 #25158E #8E157F

monochromatic

#102305 #29590D #428E15 #5BC31D #79E23B

Accessibility & contrast

On white

4.11

#428E15 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#428E15 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428E15

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428E15	#FFFFFF	#000000	##000000
##428E15	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938100

Deuteranopia (green-blind)

#897B25

Tritanopia (blue-blind)

#3D8979

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428e15;
/* rgb */ color: rgb(66, 142, 21);
/* oklch */ color: oklch(57.6% 0.166 137.2);

Tailwind

colors: {
  custom: {
    50: '#7fb05f',
    500: '#428e15',
    950: '#000000',
  },
}

SCSS

$custom: #428e15;
$custom-light: #7fb05f;
$custom-dark: #000000;

JSON

{
  "hex": "#428e15",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 21
  },
  "hsl": {
    "h": 97.686,
    "s": 74.233,
    "l": 31.961
  },
  "oklch": {
    "l": 0.57568,
    "c": 0.16607,
    "h": 137.2
  },
  "luminance": 0.20558
}

Semantic roles & 50–950 ramp

primary

#428E15

secondary

#903DC2

accent

#37F1AC

background

#F8FAF5

surface

#EFF5EA

border

#CACFC6

text

#0B1005

muted

#7C7F79

Preview Lab

Preview with #428E15

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

Preview Lab → · Contrast checker → · Palette generator →