#99DF5B#99DF5B

#99DF5B is a very light, vivid yellow-green. Relative luminance 0.603; OKLCH L 83.0% C 0.179 H 132.6°. Best body text is #000000 at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#99DF5B
RGB	rgb(153, 223, 91)
HSL	hsl(92, 67%, 62%)
HSV	hsv(92, 59%, 87%)
CMYK	cmyk(31.4%, 0%, 59.2%, 12.5%)
CIE-LAB	lab(82.00, -43.37, 56.52)
CIE-LCH	lch(82.00, 71.24, 127.50°)
OKLab	oklab(83.01% -0.121 0.1317)
OKLCH	oklch(83.01% 0.179 132.6)
XYZ	xyz(41.4123, 60.3015, 19.3529)
Luminance	0.6030 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99DF5B #A15BDF

analogous

#DBDF5B #99DF5B #5BDF5F

triadic

#99DF5B #5B99DF #DF5B99

tetradic

#99DF5B #5BDBDF #A15BDF #DF5F5B

square

#99DF5B #5BDBDF #A15BDF #DF5F5B

split-complementary

#99DF5B #5F5BDF #DF5BDB

monochromatic

#5CA01F #79D429 #99DF5B #B9E98E #D9F3C1

Accessibility & contrast

On white

1.61

#99DF5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.06

#99DF5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99DF5B

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99DF5B	#FFFFFF	#000000	##000000
##99DF5B	1.00	1.61	13.06	13.06
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.06	21.00	1.00	1.00
##000000	13.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E8CF4D

Deuteranopia (green-blind)

#DECA65

Tritanopia (blue-blind)

#9AD7C3

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #99df5b;
/* rgb */ color: rgb(153, 223, 91);
/* oklch */ color: oklch(83.0% 0.179 132.6);

Tailwind

colors: {
  custom: {
    50: '#bbe98e',
    500: '#99df5b',
    950: '#000000',
  },
}

SCSS

$custom: #99df5b;
$custom-light: #bbe98e;
$custom-dark: #000000;

JSON

{
  "hex": "#99df5b",
  "rgb": {
    "r": 153,
    "g": 223,
    "b": 91
  },
  "hsl": {
    "h": 91.818,
    "s": 67.347,
    "l": 61.569
  },
  "oklch": {
    "l": 0.83008,
    "c": 0.17886,
    "h": 132.6
  },
  "luminance": 0.60303
}

Semantic roles & 50–950 ramp

primary

#99DF5B

secondary

#723BA3

accent

#16CF78

background

#FDFEFC

surface

#F9FDF4

border

#D2D5CE

text

#12160D

muted

#82847F

Preview Lab

Preview with #99DF5B

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

Preview Lab → · Contrast checker → · Palette generator →