#91EF5B#91EF5B

#91EF5B is a very light, highly saturated yellow-green. Relative luminance 0.685; OKLCH L 86.4% C 0.204 H 135.9°. Best body text is #000000 at 14.70:1 contrast (WCAG AA passes).

Color values

HEX	#91EF5B
RGB	rgb(145, 239, 91)
HSL	hsl(98, 82%, 65%)
HSV	hsv(98, 62%, 94%)
CMYK	cmyk(39.3%, 0%, 61.9%, 6.3%)
CIE-LAB	lab(86.26, -52.72, 61.16)
CIE-LCH	lch(86.26, 80.75, 130.76°)
OKLab	oklab(86.37% -0.1462 0.1417)
OKLCH	oklch(86.37% 0.204 135.9)
XYZ	xyz(44.4308, 68.5058, 20.7773)
Luminance	0.6851 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#91EF5B #B95BEF

analogous

#DBEF5B #91EF5B #5BEF6F

triadic

#91EF5B #5B91EF #EF5B91

tetradic

#91EF5B #5BDBEF #B95BEF #EF6F5B

square

#91EF5B #5BDBEF #B95BEF #EF6F5B

split-complementary

#91EF5B #6F5BEF #EF5BDB

monochromatic

#51BD12 #6CEA23 #91EF5B #B6F493 #DCFACB

Accessibility & contrast

On white

1.43

#91EF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.70

#91EF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #91EF5B

14.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##91EF5B	#FFFFFF	#000000	##000000
##91EF5B	1.00	1.43	14.70	14.70
#FFFFFF	1.43	1.00	21.00	21.00
#000000	14.70	21.00	1.00	1.00
##000000	14.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F7DD49

Deuteranopia (green-blind)

#EAD567

Tritanopia (blue-blind)

#8EE7D0

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #91ef5b;
/* rgb */ color: rgb(145, 239, 91);
/* oklch */ color: oklch(86.4% 0.204 135.9);

Tailwind

colors: {
  custom: {
    50: '#b7f58f',
    500: '#91ef5b',
    950: '#000000',
  },
}

SCSS

$custom: #91ef5b;
$custom-light: #b7f58f;
$custom-dark: #000000;

JSON

{
  "hex": "#91ef5b",
  "rgb": {
    "r": 145,
    "g": 239,
    "b": 91
  },
  "hsl": {
    "h": 98.108,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.86374,
    "c": 0.20356,
    "h": 135.9
  },
  "luminance": 0.68508
}

Semantic roles & 50–950 ramp

primary

#91EF5B

secondary

#8A33BC

accent

#07DF90

background

#FDFFFC

surface

#F8FEF4

border

#D1D6CE

text

#12170D

muted

#82857F

Preview Lab

Preview with #91EF5B

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

Preview Lab → · Contrast checker → · Palette generator →