#91FF55#91FF55

#91FF55 is a very light, highly saturated yellow-green. Relative luminance 0.782; OKLCH L 90.1% C 0.227 H 136.5°. Best body text is #000000 at 16.64:1 contrast (WCAG AA passes).

Color values

HEX	#91FF55
RGB	rgb(145, 255, 85)
HSL	hsl(99, 100%, 67%)
HSV	hsv(99, 67%, 100%)
CMYK	cmyk(43.1%, 0%, 66.7%, 0%)
CIE-LAB	lab(90.87, -59.51, 68.52)
CIE-LCH	lch(90.87, 90.76, 130.98°)
OKLab	oklab(90.13% -0.1651 0.1565)
OKLCH	oklch(90.13% 0.227 136.5)
XYZ	xyz(49.0754, 78.1927, 21.0994)
Luminance	0.7820 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

#A9F971

ΔE00 3.72

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#91FF55 #C355FF

analogous

#E6FF55 #91FF55 #55FF6E

triadic

#91FF55 #5591FF #FF5591

tetradic

#91FF55 #55E6FF #C355FF #FF6E55

square

#91FF55 #55E6FF #C355FF #FF6E55

split-complementary

#91FF55 #6E55FF #FF55E6

monochromatic

#4DDA00 #69FF18 #91FF55 #B9FF92 #E0FFCF

Accessibility & contrast

On white

1.26

#91FF55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.64

#91FF55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #91FF55

16.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##91FF55	#FFFFFF	#000000	##000000
##91FF55	1.00	1.26	16.64	16.64
#FFFFFF	1.26	1.00	21.00	21.00
#000000	16.64	21.00	1.00	1.00
##000000	16.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB3D

Deuteranopia (green-blind)

#F9E164

Tritanopia (blue-blind)

#8CF6DD

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #91ff55;
/* rgb */ color: rgb(145, 255, 85);
/* oklch */ color: oklch(90.1% 0.227 136.5);

Tailwind

colors: {
  custom: {
    50: '#b9ff8d',
    500: '#91ff55',
    950: '#000000',
  },
}

SCSS

$custom: #91ff55;
$custom-light: #b9ff8d;
$custom-dark: #000000;

JSON

{
  "hex": "#91ff55",
  "rgb": {
    "r": 145,
    "g": 255,
    "b": 85
  },
  "hsl": {
    "h": 98.824,
    "s": 100,
    "l": 66.667
  },
  "oklch": {
    "l": 0.90131,
    "c": 0.22747,
    "h": 136.5
  },
  "luminance": 0.78196
}

Semantic roles & 50–950 ramp

primary

#91FF55

secondary

#9625D3

accent

#00E695

background

#FDFFFC

surface

#F9FFF4

border

#D2D7CE

text

#12180D

muted

#82867F

Preview Lab

Preview with #91FF55

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

Preview Lab → · Contrast checker → · Palette generator →