#99EF5D#99EF5D

#99EF5D is a very light, vivid yellow-green. Relative luminance 0.693; OKLCH L 86.8% C 0.198 H 134.5°. Best body text is #000000 at 14.86:1 contrast (WCAG AA passes).

Color values

HEX	#99EF5D
RGB	rgb(153, 239, 93)
HSL	hsl(95, 82%, 65%)
HSV	hsv(95, 61%, 94%)
CMYK	cmyk(36%, 0%, 61.1%, 6.3%)
CIE-LAB	lab(86.65, -49.95, 60.87)
CIE-LCH	lch(86.65, 78.74, 129.37°)
OKLab	oklab(86.8% -0.1389 0.1412)
OKLCH	oklch(86.8% 0.198 134.5)
XYZ	xyz(45.9782, 69.2935, 21.3062)
Luminance	0.6930 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Light Grass Green

#9AF764

ΔE00 1.75

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99EF5D #B35DEF

analogous

#E2EF5D #99EF5D #5DEF6A

triadic

#99EF5D #5D99EF #EF5D99

tetradic

#99EF5D #5DE2EF #B35DEF #EF6A5D

square

#99EF5D #5DE2EF #B35DEF #EF6A5D

split-complementary

#99EF5D #6A5DEF #EF5DE2

monochromatic

#59BF13 #76E925 #99EF5D #BCF595 #DFFACC

Accessibility & contrast

On white

1.41

#99EF5D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.86

#99EF5D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99EF5D

14.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99EF5D	#FFFFFF	#000000	##000000
##99EF5D	1.00	1.41	14.86	14.86
#FFFFFF	1.41	1.00	21.00	21.00
#000000	14.86	21.00	1.00	1.00
##000000	14.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F8DD4C

Deuteranopia (green-blind)

#ECD668

Tritanopia (blue-blind)

#98E6D0

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #99ef5d;
/* rgb */ color: rgb(153, 239, 93);
/* oklch */ color: oklch(86.8% 0.198 134.5);

Tailwind

colors: {
  custom: {
    50: '#bcf590',
    500: '#99ef5d',
    950: '#000000',
  },
}

SCSS

$custom: #99ef5d;
$custom-light: #bcf590;
$custom-dark: #000000;

JSON

{
  "hex": "#99ef5d",
  "rgb": {
    "r": 153,
    "g": 239,
    "b": 93
  },
  "hsl": {
    "h": 95.342,
    "s": 82.022,
    "l": 65.098
  },
  "oklch": {
    "l": 0.86799,
    "c": 0.19807,
    "h": 134.5
  },
  "luminance": 0.69296
}

Semantic roles & 50–950 ramp

primary

#99EF5D

secondary

#8433BD

accent

#07DE86

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#12170D

muted

#82857F

Preview Lab

Preview with #99EF5D

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

Preview Lab → · Contrast checker → · Palette generator →