#90FF40#90FF40

#90FF40 is a very light, highly saturated yellow-green. Relative luminance 0.778; OKLCH L 89.9% C 0.240 H 135.4°. Best body text is #000000 at 16.56:1 contrast (WCAG AA passes).

Color values

HEX	#90FF40
RGB	rgb(144, 255, 64)
HSL	hsl(95, 100%, 63%)
HSV	hsv(95, 75%, 100%)
CMYK	cmyk(43.5%, 0%, 74.9%, 0%)
CIE-LAB	lab(90.70, -61.21, 75.57)
CIE-LCH	lch(90.70, 97.25, 129.01°)
OKLab	oklab(89.94% -0.171 0.1685)
OKLCH	oklch(89.94% 0.24 135.4)
XYZ	xyz(48.1859, 77.8166, 17.3306)
Luminance	0.7782 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90FF40 #AF40FF

analogous

#F0FF40 #90FF40 #40FF4F

triadic

#90FF40 #4090FF #FF4090

tetradic

#90FF40 #40F0FF #AF40FF #FF4F40

square

#90FF40 #40F0FF #AF40FF #FF4F40

split-complementary

#90FF40 #4F40FF #FF40F0

monochromatic

#52C500 #6CFF03 #90FF40 #B4FF7D #D7FFBA

Accessibility & contrast

On white

1.27

#90FF40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.56

#90FF40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #90FF40

16.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90FF40	#FFFFFF	#000000	##000000
##90FF40	1.00	1.27	16.56	16.56
#FFFFFF	1.27	1.00	21.00	21.00
#000000	16.56	21.00	1.00	1.00
##000000	16.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA0F

Deuteranopia (green-blind)

#F9E154

Tritanopia (blue-blind)

#8CF5DB

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #90ff40;
/* rgb */ color: rgb(144, 255, 64);
/* oklch */ color: oklch(89.9% 0.240 135.4);

Tailwind

colors: {
  custom: {
    50: '#b9ff82',
    500: '#90ff40',
    950: '#000000',
  },
}

SCSS

$custom: #90ff40;
$custom-light: #b9ff82;
$custom-dark: #000000;

JSON

{
  "hex": "#90ff40",
  "rgb": {
    "r": 144,
    "g": 255,
    "b": 64
  },
  "hsl": {
    "h": 94.869,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.89937,
    "c": 0.24006,
    "h": 135.4
  },
  "luminance": 0.77819
}

Semantic roles & 50–950 ramp

primary

#90FF40

secondary

#7F22C1

accent

#00E685

background

#FDFFFB

surface

#F9FFF2

border

#D2D7CC

text

#12180B

muted

#82867E

Preview Lab

Preview with #90FF40

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

Preview Lab → · Contrast checker → · Palette generator →