#63FF0F#63FF0F

#63FF0F is a very light, highly saturated yellow-green. Relative luminance 0.742; OKLCH L 88.1% C 0.275 H 138.9°. Best body text is #000000 at 15.84:1 contrast (WCAG AA passes).

Color values

HEX	#63FF0F
RGB	rgb(99, 255, 15)
HSL	hsl(99, 100%, 53%)
HSV	hsv(99, 94%, 100%)
CMYK	cmyk(61.2%, 0%, 94.1%, 0%)
CIE-LAB	lab(89.02, -74.91, 83.57)
CIE-LCH	lch(89.02, 112.22, 131.87°)
OKLab	oklab(88.08% -0.2068 0.1805)
OKLCH	oklch(88.08% 0.275 138.9)
XYZ	xyz(40.9901, 74.2033, 12.6144)
Luminance	0.7421 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63FF0F #AB0FFF

analogous

#DBFF0F #63FF0F #0FFF33

triadic

#63FF0F #0F63FF #FF0F63

tetradic

#63FF0F #0FDBFF #AB0FFF #FF330F

square

#63FF0F #0FDBFF #AB0FFF #FF330F

split-complementary

#63FF0F #330FFF #FF0FDB

monochromatic

#349400 #49D100 #63FF0F #8BFF4C #B3FF89

Accessibility & contrast

On white

1.33

#63FF0F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.84

#63FF0F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63FF0F

15.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63FF0F	#FFFFFF	#000000	##000000
##63FF0F	1.00	1.33	15.84	15.84
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.84	21.00	1.00	1.00
##000000	15.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE700

Deuteranopia (green-blind)

#F4DB3D

Tritanopia (blue-blind)

#4FF6D9

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #63ff0f;
/* rgb */ color: rgb(99, 255, 15);
/* oklch */ color: oklch(88.1% 0.275 138.9);

Tailwind

colors: {
  custom: {
    50: '#a2ff72',
    500: '#63ff0f',
    950: '#000000',
  },
}

SCSS

$custom: #63ff0f;
$custom-light: #a2ff72;
$custom-dark: #000000;

JSON

{
  "hex": "#63ff0f",
  "rgb": {
    "r": 99,
    "g": 255,
    "b": 15
  },
  "hsl": {
    "h": 99,
    "s": 100,
    "l": 52.941
  },
  "oklch": {
    "l": 0.88082,
    "c": 0.27451,
    "h": 138.9
  },
  "luminance": 0.74207
}

Semantic roles & 50–950 ramp

primary

#63FF0F

secondary

#6C1B97

accent

#29FFB4

background

#FDFFFB

surface

#F7FFF1

border

#D0D7CB

text

#111809

muted

#81867D

Preview Lab

Preview with #63FF0F

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

Preview Lab → · Contrast checker → · Palette generator →