#99EC99
Closest named color: Light Green (#90EE90). oklch(86.9% 0.139 144.3), rgb(153, 236, 153).
Aa
Black text reads best on this color (14.81:1).
About this color
#99EC99 is a light, moderately saturated green. In OKLCH its lightness is 87%, its chroma 0.139 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Green (#90EE90), ΔE 0.017 away. Black text reads best on it, at 14.81:1.
| Hue family | Greens |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Light Green (#90EE90) |
| Black text | 14.81:1 |
| White text | 1.41:1 |
Values
| HEX | #99EC99 |
| RGB | rgb(153, 236, 153) |
| HSL | hsl(120, 69%, 76%) |
| OKLCH | oklch(86.9% 0.139 144.3) |
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 #99EC99 | 1.41:1 | Fails | Lc -22.8 | Dividers and decoration only |
| Black text on #99EC99 | 14.81:1 | AAA | Lc 83.7 | Fine for body text |
| #99EC99 text on white | 1.41:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #99EC99 text on black | 14.81:1 | AAA | Lc -83.4 | 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 200.
-
Step 50
50
#ECFAEC
oklch(97.1% 0.024 145.4)
-
Step 100
100
#D6F4D5
oklch(93.7% 0.052 144.3)
-
Step 200
200 (this color)
#99EC99
oklch(86.9% 0.139 144.3)
-
Step 300
300
#6FDE72
oklch(81% 0.179 144.2)
-
Step 400
400
#00C22C
oklch(70.7% 0.228 144.2)
-
Step 500
500
#00A625
oklch(63% 0.202 144.3)
-
Step 600
600
#008C1D
oklch(55.6% 0.179 144.2)
-
Step 700
700
#007617
oklch(49.1% 0.158 144.3)
-
Step 800
800
#006111
oklch(42.8% 0.138 144.2)
-
Step 900
900
#00510D
oklch(37.8% 0.121 144.3)
-
Step 950
950
#003005
oklch(26.9% 0.086 144.4)
#99EC99 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) | #EFDE93 | 0.106 |
| Deuteranopia (no green cones) | #E3D59E | 0.106 |
| Tritanopia (no blue cones) | #90E7D7 | 0.087 |
| Achromatopsia (no color) | #D9D9D9 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99EC99
#99EC99
oklch(86.9% 0.139 144.3)
- #FABAFF
#FABAFF
oklch(86.9% 0.115 324.1)
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 #99EC99, closest first.
No curated palette has a color within ΔE 0.04 of #99EC99.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Green #90EE90 ΔE 0.017
- Hospital Green #9BE5AA ΔE 0.033
- Seafoam #80F9AD ΔE 0.037
- Seafoam Green #7AF9AB ΔE 0.038
- Pale Green #98FB98 ΔE 0.041
- Light Blue Green #7EFBB3 ΔE 0.043
- Foam Green #90FDA9 ΔE 0.043
- Light Grey Green #B7E1A1 ΔE 0.047
Use #99EC99 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.