#91E440#91E440

#91E440 is a very light, highly saturated yellow-green. Relative luminance 0.619; OKLCH L 83.5% C 0.208 H 132.9°. Best body text is #000000 at 13.38:1 contrast (WCAG AA passes).

Color values

HEX	#91E440
RGB	rgb(145, 228, 64)
HSL	hsl(90, 75%, 57%)
HSV	hsv(90, 72%, 89%)
CMYK	cmyk(36.4%, 0%, 71.9%, 10.6%)
CIE-LAB	lab(82.85, -50.29, 67.90)
CIE-LCH	lch(82.85, 84.50, 126.53°)
OKLab	oklab(83.52% -0.1415 0.1525)
OKLCH	oklch(83.52% 0.208 132.9)
XYZ	xyz(40.3453, 61.8749, 14.6668)
Luminance	0.6188 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 5.74

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#91E440 #9340E4

analogous

#E3E440 #91E440 #40E441

triadic

#91E440 #4091E4 #E44091

tetradic

#91E440 #40E3E4 #9340E4 #E44140

square

#91E440 #40E3E4 #9340E4 #E44140

split-complementary

#91E440 #4140E4 #E440E3

monochromatic

#549515 #72CA1D #91E440 #B0EC76 #CFF3AB

Accessibility & contrast

On white

1.57

#91E440 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.38

#91E440 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #91E440

13.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##91E440	#FFFFFF	#000000	##000000
##91E440	1.00	1.57	13.38	13.38
#FFFFFF	1.57	1.00	21.00	21.00
#000000	13.38	21.00	1.00	1.00
##000000	13.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDD221

Deuteranopia (green-blind)

#E2CC50

Tritanopia (blue-blind)

#92DBC4

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #91e440;
/* rgb */ color: rgb(145, 228, 64);
/* oklch */ color: oklch(83.5% 0.208 132.9);

Tailwind

colors: {
  custom: {
    50: '#b7ed7f',
    500: '#91e440',
    950: '#000000',
  },
}

SCSS

$custom: #91e440;
$custom-light: #b7ed7f;
$custom-dark: #000000;

JSON

{
  "hex": "#91e440",
  "rgb": {
    "r": 145,
    "g": 228,
    "b": 64
  },
  "hsl": {
    "h": 90.366,
    "s": 75.229,
    "l": 57.255
  },
  "oklch": {
    "l": 0.83522,
    "c": 0.20803,
    "h": 132.9
  },
  "luminance": 0.61877
}

Semantic roles & 50–950 ramp

primary

#91E440

secondary

#652F99

accent

#36F295

background

#FDFFFB

surface

#F8FEF2

border

#D1D6CC

text

#12160B

muted

#82857E

Preview Lab

Preview with #91E440

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

Preview Lab → · Contrast checker → · Palette generator →