#99BB31#99BB31

#99BB31 is a light, vivid yellow-green. Relative luminance 0.425; OKLCH L 74.2% C 0.163 H 122.7°. Best body text is #000000 at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#99BB31
RGB	rgb(153, 187, 49)
HSL	hsl(75, 58%, 46%)
HSV	hsv(75, 74%, 73%)
CMYK	cmyk(18.2%, 0%, 73.8%, 26.7%)
CIE-LAB	lab(71.24, -30.15, 61.84)
CIE-LCH	lch(71.24, 68.80, 115.99°)
OKLab	oklab(74.18% -0.0882 0.1373)
OKLCH	oklch(74.18% 0.163 122.7)
XYZ	xyz(31.4620, 42.5346, 9.4576)
Luminance	0.4254 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99BB31 #5331BB

analogous

#BB9831 #99BB31 #54BB31

triadic

#99BB31 #3199BB #BB3199

tetradic

#99BB31 #31BB98 #5331BB #BB3154

square

#99BB31 #31BB98 #5331BB #BB3154

split-complementary

#99BB31 #3154BB #9831BB

monochromatic

#4A5A18 #718B24 #99BB31 #B4D356 #CAE087

Accessibility & contrast

On white

2.21

#99BB31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.51

#99BB31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99BB31

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99BB31	#FFFFFF	#000000	##000000
##99BB31	1.00	2.21	9.51	9.51
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.51	21.00	1.00	1.00
##000000	9.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6AF14

Deuteranopia (green-blind)

#C2AE3D

Tritanopia (blue-blind)

#A1B1A1

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #99bb31;
/* rgb */ color: rgb(153, 187, 49);
/* oklch */ color: oklch(74.2% 0.163 122.7);

Tailwind

colors: {
  custom: {
    50: '#bbcf73',
    500: '#99bb31',
    950: '#000000',
  },
}

SCSS

$custom: #99bb31;
$custom-light: #bbcf73;
$custom-dark: #000000;

JSON

{
  "hex": "#99bb31",
  "rgb": {
    "r": 153,
    "g": 187,
    "b": 49
  },
  "hsl": {
    "h": 74.783,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.74178,
    "c": 0.16323,
    "h": 122.7
  },
  "luminance": 0.42535
}

Semantic roles & 50–950 ramp

primary

#99BB31

secondary

#917FC9

accent

#46E26C

background

#FBFCF7

surface

#F7F9ED

border

#D0D2C8

text

#121309

muted

#81827B

Preview Lab

Preview with #99BB31

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

Preview Lab → · Contrast checker → · Palette generator →