#99FB58#99FB58

#99FB58 is a very light, highly saturated yellow-green. Relative luminance 0.765; OKLCH L 89.6% C 0.217 H 135.2°. Best body text is #000000 at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#99FB58
RGB	rgb(153, 251, 88)
HSL	hsl(96, 95%, 66%)
HSV	hsv(96, 65%, 98%)
CMYK	cmyk(39%, 0%, 64.9%, 1.6%)
CIE-LAB	lab(90.08, -55.24, 66.63)
CIE-LCH	lch(90.08, 86.55, 129.66°)
OKLab	oklab(89.59% -0.1537 0.1528)
OKLCH	oklch(89.59% 0.217 135.2)
XYZ	xyz(49.3944, 76.4687, 21.3879)
Luminance	0.7647 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99FB58 #BA58FB

analogous

#EAFB58 #99FB58 #58FB69

triadic

#99FB58 #5899FB #FB5899

tetradic

#99FB58 #58EAFB #BA58FB #FB6958

square

#99FB58 #58EAFB #BA58FB #FB6958

split-complementary

#99FB58 #6958FB #FB58EA

monochromatic

#57D405 #74FA1C #99FB58 #BEFC94 #E2FED0

Accessibility & contrast

On white

1.29

#99FB58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.29

#99FB58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99FB58

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99FB58	#FFFFFF	#000000	##000000
##99FB58	1.00	1.29	16.29	16.29
#FFFFFF	1.29	1.00	21.00	21.00
#000000	16.29	21.00	1.00	1.00
##000000	16.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE842

Deuteranopia (green-blind)

#F6E066

Tritanopia (blue-blind)

#97F2DA

Achromatopsia (no color)

#E3E3E3

Design tokens & code

CSS

--color: #99fb58;
/* rgb */ color: rgb(153, 251, 88);
/* oklch */ color: oklch(89.6% 0.217 135.2);

Tailwind

colors: {
  custom: {
    50: '#bdfd8e',
    500: '#99fb58',
    950: '#000000',
  },
}

SCSS

$custom: #99fb58;
$custom-light: #bdfd8e;
$custom-dark: #000000;

JSON

{
  "hex": "#99fb58",
  "rgb": {
    "r": 153,
    "g": 251,
    "b": 88
  },
  "hsl": {
    "h": 96.074,
    "s": 95.322,
    "l": 66.471
  },
  "oklch": {
    "l": 0.89585,
    "c": 0.21673,
    "h": 135.2
  },
  "luminance": 0.76471
}

Semantic roles & 50–950 ramp

primary

#99FB58

secondary

#8C29CE

accent

#00E68A

background

#FDFFFC

surface

#F9FFF4

border

#D2D7CE

text

#13180D

muted

#82867F

Preview Lab

Preview with #99FB58

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

Preview Lab → · Contrast checker → · Palette generator →