#99DE99
Closest named color: Hospital Green (#9BE5AA). oklch(83.7% 0.118 144.4), rgb(153, 222, 153).
Aa
Black text reads best on this color (13.26:1).
About this color
#99DE99 is a light, moderately saturated green. In OKLCH its lightness is 84%, its chroma 0.118 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Hospital Green (#9BE5AA), ΔE 0.025 away. Black text reads best on it, at 13.26:1.
| Hue family | Greens |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Hospital Green (#9BE5AA) |
| Black text | 13.26:1 |
| White text | 1.58:1 |
Values
| HEX | #99DE99 |
| RGB | rgb(153, 222, 153) |
| HSL | hsl(120, 51%, 74%) |
| OKLCH | oklch(83.7% 0.118 144.4) |
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 #99DE99 | 1.58:1 | Fails | Lc -29.8 | Dividers and decoration only |
| Black text on #99DE99 | 13.26:1 | AAA | Lc 77.4 | Fine for body text |
| #99DE99 text on white | 1.58:1 | Fails | Lc 26.4 | Dividers and decoration only |
| #99DE99 text on black | 13.26:1 | AAA | Lc -76.6 | Fine for body text |
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 300.
-
Step 50
50
#EFF8EF
oklch(97% 0.015 145.5)
-
Step 100
100
#DDF0DC
oklch(93.6% 0.033 143.9)
-
Step 200
200
#C0E5BF
oklch(88.5% 0.064 144.3)
-
Step 300
300 (this color)
#99DE99
oklch(83.7% 0.118 144.4)
-
Step 400
400
#43BD4C
oklch(70.6% 0.188 144.4)
-
Step 500
500
#00A627
oklch(63% 0.201 144.5)
-
Step 600
600
#008C1F
oklch(55.6% 0.178 144.4)
-
Step 700
700
#007618
oklch(49.1% 0.157 144.4)
-
Step 800
800
#006112
oklch(42.8% 0.137 144.4)
-
Step 900
900
#00510E
oklch(37.8% 0.121 144.5)
-
Step 950
950
#003005
oklch(26.9% 0.086 144.4)
#99DE99 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) | #E1D295 | 0.091 |
| Deuteranopia (no green cones) | #D6CB9D | 0.089 |
| Tritanopia (no blue cones) | #92DACC | 0.073 |
| Achromatopsia (no color) | #CDCDCD | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99DE99
#99DE99
oklch(83.7% 0.118 144.4)
- #F0AFF5
#F0AFF5
oklch(83.7% 0.118 324.2)
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 #99DE99, closest first.
No curated palette has a color within ΔE 0.04 of #99DE99.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Hospital Green #9BE5AA ΔE 0.025
- Light Grey Green #B7E1A1 ΔE 0.038
- Pale Olive Green #B1D27B ΔE 0.042
- Light Teal #90E4C1 ΔE 0.049
- Light Green #90EE90 ΔE 0.049
- Pale Olive #B9CC81 ΔE 0.054
- Greenish Tan #BCCB7A ΔE 0.059
- Light Moss Green #A6C875 ΔE 0.060
Use #99DE99 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.