#99BB52
Closest named color: Light Olive Green (#A4BE5C). oklch(74.5% 0.138 124.7), rgb(153, 187, 82).
Aa
Black text reads best on this color (9.58:1).
About this color
#99BB52 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 74%, its chroma 0.138 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.020 away. Black text reads best on it, at 9.58:1.
| Hue family | Yellows |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 9.58:1 |
| White text | 2.19:1 |
Values
| HEX | #99BB52 |
| RGB | rgb(153, 187, 82) |
| HSL | hsl(79, 44%, 53%) |
| OKLCH | oklch(74.5% 0.138 124.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #99BB52 | 2.19:1 | Fails | Lc -47.8 | Large or bold text, headings |
| Black text on #99BB52 | 9.58:1 | AAA | Lc 60.9 | Content text, not long reading |
| #99BB52 text on white | 2.19:1 | Fails | Lc 43.0 | Non-text elements, placeholder text |
| #99BB52 text on black | 9.58:1 | AAA | Lc -59.2 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F4F7EF
oklch(97.2% 0.011 123.5)
-
Step 100
100
#E6EDDB
oklch(93.6% 0.025 124.3)
-
Step 200
200
#D2DFBD
oklch(88.5% 0.048 124.4)
-
Step 300
300
#B4CB8D
oklch(81% 0.087 124.8)
-
Step 400
400 (this color)
#99BB52
oklch(74.5% 0.138 124.7)
-
Step 500
500
#759900
oklch(63.3% 0.158 124.6)
-
Step 600
600
#618000
oklch(55.5% 0.139 124.8)
-
Step 700
700
#516C00
oklch(49.2% 0.123 125)
-
Step 800
800
#425800
oklch(42.6% 0.107 124.6)
-
Step 900
900
#374900
oklch(37.6% 0.094 124.1)
-
Step 950
950
#1F2C00
oklch(27.1% 0.068 125.1)
#99BB52 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #C4B047 | 0.062 |
| Deuteranopia (no green cones) | #C0AF59 | 0.063 |
| Tritanopia (no blue cones) | #9FB3A4 | 0.112 |
| Achromatopsia (no color) | #AFAFAF | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99BB52
#99BB52
oklch(74.5% 0.138 124.7)
- #C095F2
#C095F2
oklch(74.5% 0.137 304.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #99BB52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.020
- Avocado #90B134 ΔE 0.036
- Light Olive #ACBF69 ΔE 0.038
- Pea #A4BF20 ΔE 0.038
- Mustard Green #A8B504 ΔE 0.039
- Bright Olive #9CBB04 ΔE 0.040
- Tan Green #A9BE70 ΔE 0.041
- Turtle Green #75B84F ΔE 0.044
Use #99BB52 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.