#99B923#99B923

#99B923 is a light, vivid yellow-green. Relative luminance 0.416; OKLCH L 73.6% C 0.168 H 121.8°. Best body text is #000000 at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#99B923
RGB	rgb(153, 185, 35)
HSL	hsl(73, 68%, 43%)
HSV	hsv(73, 81%, 73%)
CMYK	cmyk(17.3%, 0%, 81.1%, 27.5%)
CIE-LAB	lab(70.59, -29.83, 65.54)
CIE-LCH	lch(70.59, 72.01, 114.47°)
OKLab	oklab(73.63% -0.0884 0.1428)
OKLCH	oklch(73.63% 0.168 121.8)
XYZ	xyz(30.7897, 41.5915, 7.9957)
Luminance	0.4159 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99B923 #4323B9

analogous

#B98E23 #99B923 #4EB923

triadic

#99B923 #2399B9 #B92399

tetradic

#99B923 #23B98E #4323B9 #B9234E

square

#99B923 #23B98E #4323B9 #B9234E

split-complementary

#99B923 #234EB9 #8E23B9

monochromatic

#445210 #6E8619 #99B923 #B9DB3F #CCE472

Accessibility & contrast

On white

2.25

#99B923 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.32

#99B923 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99B923

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99B923	#FFFFFF	#000000	##000000
##99B923	1.00	2.25	9.32	9.32
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.32	21.00	1.00	1.00
##000000	9.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AD00

Deuteranopia (green-blind)

#C1AD33

Tritanopia (blue-blind)

#A2AF9E

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #99b923;
/* rgb */ color: rgb(153, 185, 35);
/* oklch */ color: oklch(73.6% 0.168 121.8);

Tailwind

colors: {
  custom: {
    50: '#bbce6d',
    500: '#99b923',
    950: '#000000',
  },
}

SCSS

$custom: #99b923;
$custom-light: #bbce6d;
$custom-dark: #000000;

JSON

{
  "hex": "#99b923",
  "rgb": {
    "r": 153,
    "g": 185,
    "b": 35
  },
  "hsl": {
    "h": 72.8,
    "s": 68.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.73632,
    "c": 0.16798,
    "h": 121.8
  },
  "luminance": 0.41592
}

Semantic roles & 50–950 ramp

primary

#99B923

secondary

#816DCB

accent

#3DEB62

background

#FBFCF6

surface

#F7F9EC

border

#D0D2C7

text

#121308

muted

#81827B

Preview Lab

Preview with #99B923

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

Preview Lab → · Contrast checker → · Palette generator →