#91FF40#91FF40

#91FF40 is a very light, highly saturated yellow-green. Relative luminance 0.779; OKLCH L 90.0% C 0.240 H 135.3°. Best body text is #000000 at 16.58:1 contrast (WCAG AA passes).

Color values

HEX	#91FF40
RGB	rgb(145, 255, 64)
HSL	hsl(95, 100%, 63%)
HSV	hsv(95, 75%, 100%)
CMYK	cmyk(43.1%, 0%, 74.9%, 0%)
CIE-LAB	lab(90.74, -60.91, 75.63)
CIE-LCH	lch(90.74, 97.10, 128.85°)
OKLab	oklab(89.98% -0.1702 0.1686)
OKLCH	oklch(89.98% 0.24 135.3)
XYZ	xyz(48.3614, 77.9071, 17.3388)
Luminance	0.7791 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#91FF40 #AE40FF

analogous

#F0FF40 #91FF40 #40FF4E

triadic

#91FF40 #4091FF #FF4091

tetradic

#91FF40 #40F0FF #AE40FF #FF4E40

square

#91FF40 #40F0FF #AE40FF #FF4E40

split-complementary

#91FF40 #4E40FF #FF40F0

monochromatic

#53C500 #6EFF03 #91FF40 #B4FF7D #D7FFBA

Accessibility & contrast

On white

1.27

#91FF40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.58

#91FF40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #91FF40

16.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##91FF40	#FFFFFF	#000000	##000000
##91FF40	1.00	1.27	16.58	16.58
#FFFFFF	1.27	1.00	21.00	21.00
#000000	16.58	21.00	1.00	1.00
##000000	16.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA0F

Deuteranopia (green-blind)

#FAE154

Tritanopia (blue-blind)

#8EF5DB

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #91ff40;
/* rgb */ color: rgb(145, 255, 64);
/* oklch */ color: oklch(90.0% 0.240 135.3);

Tailwind

colors: {
  custom: {
    50: '#b9ff82',
    500: '#91ff40',
    950: '#000000',
  },
}

SCSS

$custom: #91ff40;
$custom-light: #b9ff82;
$custom-dark: #000000;

JSON

{
  "hex": "#91ff40",
  "rgb": {
    "r": 145,
    "g": 255,
    "b": 64
  },
  "hsl": {
    "h": 94.555,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.89983,
    "c": 0.23958,
    "h": 135.3
  },
  "luminance": 0.7791
}

Semantic roles & 50–950 ramp

primary

#91FF40

secondary

#7E22C1

accent

#00E684

background

#FDFFFB

surface

#F9FFF2

border

#D2D7CC

text

#13180B

muted

#82867E

Preview Lab

Preview with #91FF40

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

Preview Lab → · Contrast checker → · Palette generator →