#99ECB3
Closest named color: Hospital Green (#9BE5AA). oklch(87.5% 0.114 153.5), rgb(153, 236, 179).
Aa
Black text reads best on this color (15.00:1).
About this color
#99ECB3 is a light, moderately saturated green. In OKLCH its lightness is 87%, its chroma 0.114 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Hospital Green (#9BE5AA), ΔE 0.019 away. Black text reads best on it, at 15.00:1.
| Hue family | Greens |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Hospital Green (#9BE5AA) |
| Black text | 15.00:1 |
| White text | 1.39:1 |
Values
| HEX | #99ECB3 |
| RGB | rgb(153, 236, 179) |
| HSL | hsl(139, 69%, 76%) |
| OKLCH | oklch(87.5% 0.114 153.5) |
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 #99ECB3 | 1.39:1 | Fails | Lc -22.0 | Dividers and decoration only |
| Black text on #99ECB3 | 15.00:1 | AAA | Lc 84.4 | Fine for body text |
| #99ECB3 text on white | 1.39:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #99ECB3 text on black | 15.00:1 | AAA | Lc -84.2 | 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
#ECFAEF
oklch(97.2% 0.021 152.2)
-
Step 100
100
#D5F3DD
oklch(93.6% 0.043 153.7)
-
Step 200
200 (this color)
#99ECB3
oklch(87.5% 0.114 153.5)
-
Step 300
300
#6BDC94
oklch(81% 0.146 153.6)
-
Step 400
400
#00BF69
oklch(70.6% 0.179 153.7)
-
Step 500
500
#00A459
oklch(63% 0.16 153.6)
-
Step 600
600
#008A4A
oklch(55.6% 0.141 153.6)
-
Step 700
700
#00743D
oklch(49% 0.125 153.5)
-
Step 800
800
#005F31
oklch(42.6% 0.108 153.6)
-
Step 900
900
#005028
oklch(37.8% 0.097 153.4)
-
Step 950
950
#003016
oklch(27.1% 0.069 153.7)
#99ECB3 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) | #ECDFB0 | 0.101 |
| Deuteranopia (no green cones) | #DFD6B6 | 0.099 |
| Tritanopia (no blue cones) | #8AEADC | 0.057 |
| Achromatopsia (no color) | #DADADA | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99ECB3
#99ECB3
oklch(87.5% 0.114 153.5)
- #FFBDF2
#FFBDF2
oklch(87.5% 0.101 333.5)
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 #99ECB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Hospital Green #9BE5AA ΔE 0.019
- Light Teal #90E4C1 ΔE 0.034
- Light Turquoise #7EF4CC ΔE 0.035
- Light Sage #BCECAC ΔE 0.037
- Light Grey Green #B7E1A1 ΔE 0.039
- Seafoam #80F9AD ΔE 0.043
- Light Blue Green #7EFBB3 ΔE 0.045
- Light Mint Green #A6FBB2 ΔE 0.045
Use #99ECB3 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.