#78CE91
Closest named color: Medium Aquamarine (#66CDAA). oklch(78.1% 0.121 152.1), rgb(120, 206, 145).
Aa
Black text reads best on this color (11.03:1).
About this color
#78CE91 is a light, moderately saturated green. In OKLCH its lightness is 78%, its chroma 0.121 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.036 away. Black text reads best on it, at 11.03:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.03:1 |
| White text | 1.90:1 |
Values
| HEX | #78CE91 |
| RGB | rgb(120, 206, 145) |
| HSL | hsl(137, 47%, 64%) |
| OKLCH | oklch(78.1% 0.121 152.1) |
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 #78CE91 | 1.90:1 | Fails | Lc -40.4 | Non-text elements, placeholder text |
| Black text on #78CE91 | 11.03:1 | AAA | Lc 67.8 | Content text, not long reading |
| #78CE91 text on white | 1.90:1 | Fails | Lc 36.1 | Non-text elements, placeholder text |
| #78CE91 text on black | 11.03:1 | AAA | Lc -66.4 | 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
#EEF9F0
oklch(97.1% 0.017 151.1)
-
Step 100
100
#D9F1DF
oklch(93.6% 0.035 153.2)
-
Step 200
200
#B9E7C4
oklch(88.6% 0.068 152.1)
-
Step 300
300 (this color)
#78CE91
oklch(78.1% 0.121 152.1)
-
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
#008A45
oklch(55.5% 0.146 152)
-
Step 700
700
#007439
oklch(49% 0.129 152)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#005025
oklch(37.8% 0.1 151.8)
-
Step 950
950
#003014
oklch(27.1% 0.071 152.1)
#78CE91 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) | #CEC18D | 0.105 |
| Deuteranopia (no green cones) | #C1B895 | 0.103 |
| Tritanopia (no blue cones) | #68CCBE | 0.064 |
| Achromatopsia (no color) | #BCBCBC | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78CE91
#78CE91
oklch(78.1% 0.121 152.1)
- #E59ADA
#E59ADA
oklch(78% 0.121 332)
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 #78CE91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.036
- Soft Green #6FC276 ΔE 0.043
- Seafoam Blue #78D1B6 ΔE 0.049
- Pale Teal #82CBB2 ΔE 0.051
- Emerald #06D6A0 ΔE 0.052
- Light Moss Green #A6C875 ΔE 0.052
- Dark Sea Green #8FBC8F ΔE 0.053
- Tan Green #A9BE70 ΔE 0.064
Use #78CE91 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.