#99EFA4
Closest named color: Light Green (#90EE90). oklch(87.9% 0.132 147.4), rgb(153, 239, 164).
Aa
Black text reads best on this color (15.23:1).
About this color
#99EFA4 is a light, moderately saturated green. In OKLCH its lightness is 88%, its chroma 0.132 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Green (#90EE90), ΔE 0.027 away. Black text reads best on it, at 15.23:1.
| Hue family | Greens |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Light Green (#90EE90) |
| Black text | 15.23:1 |
| White text | 1.37:1 |
Values
| HEX | #99EFA4 |
| RGB | rgb(153, 239, 164) |
| HSL | hsl(128, 73%, 77%) |
| OKLCH | oklch(87.9% 0.132 147.4) |
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 #99EFA4 | 1.37:1 | Fails | Lc -20.9 | Dividers and decoration only |
| Black text on #99EFA4 | 15.23:1 | AAA | Lc 85.4 | Fine for body text |
| #99EFA4 text on white | 1.37:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #99EFA4 text on black | 15.23:1 | AAA | Lc -85.2 | 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
#ECFAED
oklch(97.1% 0.023 147.5)
-
Step 100
100
#D5F3D7
oklch(93.5% 0.049 147)
-
Step 200
200 (this color)
#99EFA4
oklch(87.9% 0.132 147.4)
-
Step 300
300
#6ADE7E
oklch(81% 0.17 147.5)
-
Step 400
400
#00C14A
oklch(70.7% 0.208 147.5)
-
Step 500
500
#00A63E
oklch(63.2% 0.186 147.4)
-
Step 600
600
#008B33
oklch(55.5% 0.163 147.4)
-
Step 700
700
#00752A
oklch(49% 0.144 147.5)
-
Step 800
800
#006021
oklch(42.6% 0.125 147.5)
-
Step 900
900
#00501A
oklch(37.6% 0.11 147.5)
-
Step 950
950
#00300C
oklch(26.9% 0.079 147.3)
#99EFA4 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) | #F1E19F | 0.107 |
| Deuteranopia (no green cones) | #E4D8A8 | 0.106 |
| Tritanopia (no blue cones) | #8DEBDB | 0.077 |
| Achromatopsia (no color) | #DBDBDB | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99EFA4
#99EFA4
oklch(87.9% 0.132 147.4)
- #FFBDFD
#FFBDFD
oklch(87.8% 0.112 327.5)
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 #99EFA4, closest first.
No curated palette has a color within ΔE 0.04 of #99EFA4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Green #90EE90 ΔE 0.027
- Seafoam #80F9AD ΔE 0.030
- Hospital Green #9BE5AA ΔE 0.031
- Seafoam Green #7AF9AB ΔE 0.033
- Light Blue Green #7EFBB3 ΔE 0.035
- Foam Green #90FDA9 ΔE 0.036
- Light Mint Green #A6FBB2 ΔE 0.037
- Pale Green #98FB98 ΔE 0.040
Use #99EFA4 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.