#99EFB1
Closest named color: Hospital Green (#9BE5AA). oklch(88.1% 0.12 152.2), rgb(153, 239, 177).
Aa
Black text reads best on this color (15.33:1).
About this color
#99EFB1 is a light, moderately saturated green. In OKLCH its lightness is 88%, its chroma 0.120 and its hue 152°. 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 15.33:1.
| Hue family | Greens |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Hospital Green (#9BE5AA) |
| Black text | 15.33:1 |
| White text | 1.36:1 |
Values
| HEX | #99EFB1 |
| RGB | rgb(153, 239, 177) |
| HSL | hsl(137, 73%, 77%) |
| OKLCH | oklch(88.1% 0.12 152.2) |
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 #99EFB1 | 1.36:1 | Fails | Lc -20.5 | Dividers and decoration only |
| Black text on #99EFB1 | 15.33:1 | AAA | Lc 85.7 | Fine for body text |
| #99EFB1 text on white | 1.36:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #99EFB1 text on black | 15.33:1 | AAA | Lc -85.6 | 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
#ECFAEF
oklch(97.2% 0.021 152.2)
-
Step 100
100
#D5F3DC
oklch(93.6% 0.044 152.4)
-
Step 200
200 (this color)
#99EFB1
oklch(88.1% 0.12 152.2)
-
Step 300
300
#68DD8E
oklch(81% 0.155 152)
-
Step 400
400
#00C063
oklch(70.8% 0.186 152.1)
-
Step 500
500
#00A554
oklch(63.2% 0.166 152.1)
-
Step 600
600
#008A46
oklch(55.5% 0.145 152.3)
-
Step 700
700
#00743A
oklch(49% 0.128 152.4)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#005026
oklch(37.8% 0.099 152.3)
-
Step 950
950
#003014
oklch(27.1% 0.071 152.1)
#99EFB1 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) | #EFE2AD | 0.104 |
| Deuteranopia (no green cones) | #E2D9B5 | 0.102 |
| Tritanopia (no blue cones) | #8AEDDE | 0.062 |
| Achromatopsia (no color) | #DCDCDC | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99EFB1
#99EFB1
oklch(88.1% 0.12 152.2)
- #FFC0F5
#FFC0F5
oklch(88.1% 0.099 332)
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 #99EFB1, 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 0.035
- Light Turquoise #7EF4CC ΔE 0.036
- Light Sage #BCECAC ΔE 0.036
- Light Mint Green #A6FBB2 ΔE 0.037
- Light Blue Green #7EFBB3 ΔE 0.037
- Seafoam Green #7AF9AB ΔE 0.039
- Light Aquamarine #7BFDC7 ΔE 0.041
Use #99EFB1 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.