#4ECA21#4ECA21

#4ECA21 is a light, highly saturated green. Relative luminance 0.440; OKLCH L 74.0% C 0.224 H 139.5°. Best body text is #000000 at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#4ECA21
RGB	rgb(78, 202, 33)
HSL	hsl(104, 72%, 46%)
HSV	hsv(104, 84%, 79%)
CMYK	cmyk(61.4%, 0%, 83.7%, 20.8%)
CIE-LAB	lab(72.21, -61.84, 66.16)
CIE-LCH	lch(72.21, 90.56, 133.07°)
OKLab	oklab(74.01% -0.1702 0.1455)
OKLCH	oklch(74.01% 0.224 139.5)
XYZ	xyz(24.5359, 43.9683, 8.6323)
Luminance	0.4397 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4ECA21 #9D21CA

analogous

#A2CA21 #4ECA21 #21CA49

triadic

#4ECA21 #214ECA #CA214E

tetradic

#4ECA21 #21A2CA #9D21CA #CA4921

square

#4ECA21 #21A2CA #9D21CA #CA4921

split-complementary

#4ECA21 #4921CA #CA21A2

monochromatic

#256110 #3A9518 #4ECA21 #70E147 #99EA7C

Accessibility & contrast

On white

2.14

#4ECA21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.79

#4ECA21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4ECA21

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4ECA21	#FFFFFF	#000000	##000000
##4ECA21	1.00	2.14	9.79	9.79
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.79	21.00	1.00	1.00
##000000	9.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B700

Deuteranopia (green-blind)

#C1AD38

Tritanopia (blue-blind)

#3EC3AC

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #4eca21;
/* rgb */ color: rgb(78, 202, 33);
/* oklch */ color: oklch(74.0% 0.224 139.5);

Tailwind

colors: {
  custom: {
    50: '#8fdb6d',
    500: '#4eca21',
    950: '#000000',
  },
}

SCSS

$custom: #4eca21;
$custom-light: #8fdb6d;
$custom-dark: #000000;

JSON

{
  "hex": "#4eca21",
  "rgb": {
    "r": 78,
    "g": 202,
    "b": 33
  },
  "hsl": {
    "h": 104.024,
    "s": 71.915,
    "l": 46.078
  },
  "oklch": {
    "l": 0.7401,
    "c": 0.22392,
    "h": 139.5
  },
  "luminance": 0.43971
}

Semantic roles & 50–950 ramp

primary

#4ECA21

secondary

#B975D2

accent

#39EFBE

background

#F9FDF7

surface

#F2FBED

border

#CCD4C8

text

#0E1508

muted

#7E837B

Preview Lab

Preview with #4ECA21

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

Preview Lab → · Contrast checker → · Palette generator →