#78C99E
Closest named color: Medium Aquamarine (#66CDAA). oklch(77.2% 0.102 159.6), rgb(120, 201, 158).
Aa
Black text reads best on this color (10.64:1).
About this color
#78C99E is a medium-light, moderately saturated green. In OKLCH its lightness is 77%, its chroma 0.102 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.019 away. Black text reads best on it, at 10.64:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.64:1 |
| White text | 1.97:1 |
Values
| HEX | #78C99E |
| RGB | rgb(120, 201, 158) |
| HSL | hsl(148, 43%, 63%) |
| OKLCH | oklch(77.2% 0.102 159.6) |
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 #78C99E | 1.97:1 | Fails | Lc -42.3 | Non-text elements, placeholder text |
| Black text on #78C99E | 10.64:1 | AAA | Lc 66.0 | Content text, not long reading |
| #78C99E text on white | 1.97:1 | Fails | Lc 37.9 | Non-text elements, placeholder text |
| #78C99E text on black | 10.64:1 | AAA | Lc -64.5 | Content text, not long reading |
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 300.
-
Step 50
50
#EEF8F2
oklch(97% 0.013 159.9)
-
Step 100
100
#DAF0E3
oklch(93.5% 0.029 159.9)
-
Step 200
200
#BAE5CC
oklch(88.5% 0.056 159.5)
-
Step 300
300 (this color)
#78C99E
oklch(77.2% 0.102 159.6)
-
Step 400
400
#00BE7C
oklch(70.7% 0.161 159.6)
-
Step 500
500
#00A36A
oklch(63.1% 0.143 159.7)
-
Step 600
600
#008958
oklch(55.6% 0.127 159.5)
-
Step 700
700
#007349
oklch(49% 0.112 159.4)
-
Step 800
800
#005F3B
oklch(42.8% 0.098 159.1)
-
Step 900
900
#004F31
oklch(37.7% 0.086 159.7)
-
Step 950
950
#002F1B
oklch(26.9% 0.062 159.3)
#78C99E 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) | #C7BE9C | 0.096 |
| Deuteranopia (no green cones) | #BAB5A1 | 0.093 |
| Tritanopia (no blue cones) | #65C8BD | 0.045 |
| Achromatopsia (no color) | #B9B9B9 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78C99E
#78C99E
oklch(77.2% 0.102 159.6)
- #E19BCA
#E19BCA
oklch(77.2% 0.103 339.5)
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 #78C99E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.019
- Pale Teal #82CBB2 ΔE 0.030
- Seafoam Blue #78D1B6 ΔE 0.034
- Dark Sea Green #8FBC8F ΔE 0.038
- Soft Green #6FC276 ΔE 0.053
- Tiffany Blue #94D2BD ΔE 0.057
- Lichen #8FB67B ΔE 0.057
- Muted Teal #90B494 ΔE 0.058
Use #78C99E 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.