#99EFAE
Closest named color: Hospital Green (#9BE5AA). oklch(88.1% 0.123 151), rgb(153, 239, 174).
Aa
Black text reads best on this color (15.31:1).
About this color
#99EFAE is a light, moderately saturated green. In OKLCH its lightness is 88%, its chroma 0.123 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Hospital Green (#9BE5AA), ΔE 0.026 away. Black text reads best on it, at 15.31:1.
| Hue family | Greens |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Hospital Green (#9BE5AA) |
| Black text | 15.31:1 |
| White text | 1.37:1 |
Values
| HEX | #99EFAE |
| RGB | rgb(153, 239, 174) |
| HSL | hsl(135, 73%, 77%) |
| OKLCH | oklch(88.1% 0.123 151) |
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 #99EFAE | 1.37:1 | Fails | Lc -20.6 | Dividers and decoration only |
| Black text on #99EFAE | 15.31:1 | AAA | Lc 85.7 | Fine for body text |
| #99EFAE text on white | 1.37:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #99EFAE text on black | 15.31:1 | AAA | Lc -85.5 | 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
#ECFAEE
oklch(97.1% 0.022 149.7)
-
Step 100
100
#D5F3DB
oklch(93.6% 0.045 151.3)
-
Step 200
200 (this color)
#99EFAE
oklch(88.1% 0.123 151)
-
Step 300
300
#68DD8A
oklch(80.9% 0.159 150.9)
-
Step 400
400
#00C05E
oklch(70.7% 0.19 151)
-
Step 500
500
#00A550
oklch(63.2% 0.17 151.1)
-
Step 600
600
#008B42
oklch(55.7% 0.15 151)
-
Step 700
700
#007536
oklch(49.2% 0.133 150.8)
-
Step 800
800
#00602B
oklch(42.8% 0.116 150.8)
-
Step 900
900
#005023
oklch(37.7% 0.102 150.9)
-
Step 950
950
#003012
oklch(27% 0.073 150.7)
#99EFAE 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) | #F0E2AA | 0.105 |
| Deuteranopia (no green cones) | #E2D8B2 | 0.103 |
| Tritanopia (no blue cones) | #8BECDE | 0.067 |
| Achromatopsia (no color) | #DCDCDC | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99EFAE
#99EFAE
oklch(88.1% 0.123 151)
- #FFC0F7
#FFC0F7
oklch(88.1% 0.101 330.8)
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 #99EFAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Hospital Green #9BE5AA ΔE 0.026
- Seafoam #80F9AD ΔE 0.033
- Light Blue Green #7EFBB3 ΔE 0.036
- Light Mint Green #A6FBB2 ΔE 0.036
- Light Sage #BCECAC ΔE 0.037
- Seafoam Green #7AF9AB ΔE 0.037
- Light Turquoise #7EF4CC ΔE 0.039
- Light Green #90EE90 ΔE 0.039
Use #99EFAE 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.