#78CD9B
Closest named color: Medium Aquamarine (#66CDAA). oklch(78.1% 0.11 156.8), rgb(120, 205, 155).
Aa
Black text reads best on this color (11.00:1).
About this color
#78CD9B is a light, moderately saturated green. In OKLCH its lightness is 78%, its chroma 0.110 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.023 away. Black text reads best on it, at 11.00:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.00:1 |
| White text | 1.90:1 |
Values
| HEX | #78CD9B |
| RGB | rgb(120, 205, 155) |
| HSL | hsl(145, 46%, 64%) |
| OKLCH | oklch(78.1% 0.11 156.8) |
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 #78CD9B | 1.90:1 | Fails | Lc -40.5 | Non-text elements, placeholder text |
| Black text on #78CD9B | 11.00:1 | AAA | Lc 67.6 | Content text, not long reading |
| #78CD9B text on white | 1.90:1 | Fails | Lc 36.3 | Non-text elements, placeholder text |
| #78CD9B text on black | 11.00:1 | AAA | Lc -66.2 | 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
#EEF9F1
oklch(97.2% 0.016 154.5)
-
Step 100
100
#D9F1E1
oklch(93.6% 0.033 156.5)
-
Step 200
200
#B9E6C9
oklch(88.5% 0.061 156.7)
-
Step 300
300 (this color)
#78CD9B
oklch(78.1% 0.11 156.8)
-
Step 400
400
#00BF74
oklch(70.8% 0.169 156.8)
-
Step 500
500
#00A463
oklch(63.2% 0.151 156.8)
-
Step 600
600
#008A52
oklch(55.7% 0.134 156.6)
-
Step 700
700
#007444
oklch(49.2% 0.118 156.6)
-
Step 800
800
#005F37
oklch(42.7% 0.102 156.7)
-
Step 900
900
#004F2D
oklch(37.6% 0.09 156.8)
-
Step 950
950
#002F19
oklch(26.9% 0.064 157.1)
#78CD9B 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) | #CCC198 | 0.102 |
| Deuteranopia (no green cones) | #BFB89E | 0.099 |
| Tritanopia (no blue cones) | #65CCBF | 0.051 |
| Achromatopsia (no color) | #BCBCBC | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78CD9B
#78CD9B
oklch(78.1% 0.11 156.8)
- #E59CD2
#E59CD2
oklch(78.1% 0.111 336.6)
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 #78CD9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.023
- Seafoam Blue #78D1B6 ΔE 0.035
- Pale Teal #82CBB2 ΔE 0.037
- Dark Sea Green #8FBC8F ΔE 0.047
- Soft Green #6FC276 ΔE 0.051
- Emerald #06D6A0 ΔE 0.054
- Tiffany Blue #94D2BD ΔE 0.058
- Light Moss Green #A6C875 ΔE 0.059
Use #78CD9B 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.