#00FF3F#00FF3F

#00FF3F is a very light, highly saturated green. Relative luminance 0.719; OKLCH L 86.8% C 0.279 H 144.3°. Best body text is #000000 at 15.38:1 contrast (WCAG AA passes).

Color values

HEX	#00FF3F
RGB	rgb(0, 255, 63)
HSL	hsl(135, 100%, 50%)
HSV	hsv(135, 100%, 100%)
CMYK	cmyk(100%, 0%, 75.3%, 0%)
CIE-LAB	lab(87.91, -83.94, 72.22)
CIE-LCH	lch(87.91, 110.73, 139.29°)
OKLab	oklab(86.84% -0.2263 0.1624)
OKLCH	oklch(86.84% 0.279 144.3)
XYZ	xyz(36.6545, 71.8740, 16.6428)
Luminance	0.7188 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00FF3F #FF00C0

analogous

#40FF00 #00FF3F #00FFBF

triadic

#00FF3F #3F00FF #FF3F00

tetradic

#00FF3F #0040FF #FF00C0 #FFBF00

square

#00FF3F #0040FF #FF00C0 #FFBF00

split-complementary

#00FF3F #BF00FF #FF0040

monochromatic

#008521 #00C230 #00FF3F #3DFF6D #7AFF9B

Accessibility & contrast

On white

1.37

#00FF3F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.38

#00FF3F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #00FF3F

15.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00FF3F	#FFFFFF	#000000	##000000
##00FF3F	1.00	1.37	15.38	15.38
#FFFFFF	1.37	1.00	21.00	21.00
#000000	15.38	21.00	1.00	1.00
##000000	15.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE60D

Deuteranopia (green-blind)

#EDD655

Tritanopia (blue-blind)

#00F8DB

Achromatopsia (no color)

#DCDCDC

Design tokens & code

CSS

--color: #00ff3f;
/* rgb */ color: rgb(0, 255, 63);
/* oklch */ color: oklch(86.8% 0.279 144.3);

Tailwind

colors: {
  custom: {
    50: '#87ff81',
    500: '#00ff3f',
    950: '#000000',
  },
}

SCSS

$custom: #00ff3f;
$custom-light: #87ff81;
$custom-dark: #000000;

JSON

{
  "hex": "#00ff3f",
  "rgb": {
    "r": 0,
    "g": 255,
    "b": 63
  },
  "hsl": {
    "h": 134.824,
    "s": 100,
    "l": 50
  },
  "oklch": {
    "l": 0.86844,
    "c": 0.27856,
    "h": 144.3
  },
  "luminance": 0.71879
}

Semantic roles & 50–950 ramp

primary

#00FF3F

secondary

#8B186E

accent

#29CAFF

background

#FCFFFB

surface

#F5FFF2

border

#CFD7CC

text

#0E180B

muted

#7F867E

Preview Lab

Preview with #00FF3F

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

Preview Lab → · Contrast checker → · Palette generator →