#99EF5F#99EF5F

#99EF5F is a very light, vivid yellow-green. Relative luminance 0.693; OKLCH L 86.8% C 0.197 H 134.7°. Best body text is #000000 at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#99EF5F
RGB	rgb(153, 239, 95)
HSL	hsl(96, 82%, 65%)
HSV	hsv(96, 60%, 94%)
CMYK	cmyk(36%, 0%, 60.3%, 6.3%)
CIE-LAB	lab(86.67, -49.77, 60.05)
CIE-LCH	lch(86.67, 77.99, 129.66°)
OKLab	oklab(86.82% -0.1383 0.1396)
OKLCH	oklch(86.82% 0.197 134.7)
XYZ	xyz(46.0679, 69.3294, 21.7789)
Luminance	0.6933 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Light Grass Green

#9AF764

ΔE00 1.71

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EF5F #B55FEF

analogous

#E1EF5F #99EF5F #5FEF6D

triadic

#99EF5F #5F99EF #EF5F99

tetradic

#99EF5F #5FE1EF #B55FEF #EF6D5F

square

#99EF5F #5FE1EF #B55FEF #EF6D5F

split-complementary

#99EF5F #6D5FEF #EF5FE1

monochromatic

#59C013 #76E927 #99EF5F #BCF597 #E0FACE

Accessibility & contrast

On white

1.41

#99EF5F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.87

#99EF5F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EF5F

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EF5F	#FFFFFF	#000000	##000000
##99EF5F	1.00	1.41	14.87	14.87
#FFFFFF	1.41	1.00	21.00	21.00
#000000	14.87	21.00	1.00	1.00
##000000	14.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F7DD4F

Deuteranopia (green-blind)

#EBD66A

Tritanopia (blue-blind)

#98E7D0

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #99ef5f;
/* rgb */ color: rgb(153, 239, 95);
/* oklch */ color: oklch(86.8% 0.197 134.7);

Tailwind

colors: {
  custom: {
    50: '#bcf591',
    500: '#99ef5f',
    950: '#000000',
  },
}

SCSS

$custom: #99ef5f;
$custom-light: #bcf591;
$custom-dark: #000000;

JSON

{
  "hex": "#99ef5f",
  "rgb": {
    "r": 153,
    "g": 239,
    "b": 95
  },
  "hsl": {
    "h": 95.833,
    "s": 81.818,
    "l": 65.49
  },
  "oklch": {
    "l": 0.86819,
    "c": 0.19653,
    "h": 134.7
  },
  "luminance": 0.69332
}

Semantic roles & 50–950 ramp

primary

#99EF5F

secondary

#8734BE

accent

#07DE88

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170D

muted

#82857F

Preview Lab

Preview with #99EF5F

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

Preview Lab → · Contrast checker → · Palette generator →