#99E589
Closest named color: Light Green (#90EE90). oklch(85% 0.145 140.2), rgb(153, 229, 137).
Aa
Black text reads best on this color (13.92:1).
About this color
#99E589 is a light, vivid green. In OKLCH its lightness is 85%, its chroma 0.145 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Green (#90EE90), ΔE 0.023 away. Black text reads best on it, at 13.92:1.
| Hue family | Greens |
| Lightness | light (85%) |
| Chroma | vivid (0.145) |
| Temperature | in between |
| Nearest name | Light Green (#90EE90) |
| Black text | 13.92:1 |
| White text | 1.50:1 |
Values
| HEX | #99E589 |
| RGB | rgb(153, 229, 137) |
| HSL | hsl(110, 64%, 72%) |
| OKLCH | oklch(85% 0.145 140.2) |
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 #99E589 | 1.50:1 | Fails | Lc -26.8 | Dividers and decoration only |
| Black text on #99E589 | 13.92:1 | AAA | Lc 80.1 | Fine for body text |
| #99E589 text on white | 1.50:1 | Fails | Lc 23.6 | Dividers and decoration only |
| #99E589 text on black | 13.92:1 | AAA | Lc -79.6 | 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 200.
-
Step 50
50
#EDFAEA
oklch(97.1% 0.025 139.8)
-
Step 100
100
#D7F3D2
oklch(93.5% 0.053 140.9)
-
Step 200
200 (this color)
#99E589
oklch(85% 0.145 140.2)
-
Step 300
300
#78DD63
oklch(80.9% 0.186 140.3)
-
Step 400
400
#39C000
oklch(70.7% 0.228 140.2)
-
Step 500
500
#30A500
oklch(63.2% 0.204 140.1)
-
Step 600
600
#278B00
oklch(55.7% 0.18 140.1)
-
Step 700
700
#1F7500
oklch(49.2% 0.159 140.2)
-
Step 800
800
#186000
oklch(42.8% 0.138 140.2)
-
Step 900
900
#125000
oklch(37.7% 0.122 140.2)
-
Step 950
950
#083000
oklch(27.1% 0.087 140)
#99E589 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) | #EAD782 | 0.102 |
| Deuteranopia (no green cones) | #DFD08E | 0.101 |
| Tritanopia (no blue cones) | #94DFCE | 0.096 |
| Achromatopsia (no color) | #D2D2D2 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99E589
#99E589
oklch(85% 0.145 140.2)
- #F1B4FF
#F1B4FF
oklch(85% 0.12 320)
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 #99E589, closest first.
No curated palette has a color within ΔE 0.04 of #99E589.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Green #90EE90 ΔE 0.023
- Hospital Green #9BE5AA ΔE 0.041
- Light Grey Green #B7E1A1 ΔE 0.051
- Pale Olive Green #B1D27B ΔE 0.052
- Seafoam Green #7AF9AB ΔE 0.056
- Seafoam #80F9AD ΔE 0.056
- Pale Green #98FB98 ΔE 0.057
- Light Sage #BCECAC ΔE 0.063
Use #99E589 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.