#4ECCA6
Closest named color: Medium Aquamarine (#66CDAA). oklch(76.5% 0.125 169.7), rgb(78, 204, 166).
Aa
Black text reads best on this color (10.51:1).
About this color
#4ECCA6 is a medium-light, moderately saturated green. In OKLCH its lightness is 76%, its chroma 0.125 and its hue 170°. 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 10.51:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.51:1 |
| White text | 1.99:1 |
Values
| HEX | #4ECCA6 |
| RGB | rgb(78, 204, 166) |
| HSL | hsl(162, 55%, 55%) |
| OKLCH | oklch(76.5% 0.125 169.7) |
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 #4ECCA6 | 1.99:1 | Fails | Lc -42.8 | Non-text elements, placeholder text |
| Black text on #4ECCA6 | 10.51:1 | AAA | Lc 65.5 | Content text, not long reading |
| #4ECCA6 text on white | 1.99:1 | Fails | Lc 38.4 | Non-text elements, placeholder text |
| #4ECCA6 text on black | 10.51:1 | AAA | Lc -64.0 | 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
#EBF9F4
oklch(97% 0.016 172.7)
-
Step 100
100
#D3F2E6
oklch(93.5% 0.036 170.2)
-
Step 200
200
#ACE9D2
oklch(88.6% 0.07 169.4)
-
Step 300
300 (this color)
#4ECCA6
oklch(76.5% 0.125 169.7)
-
Step 400
400
#00BC93
oklch(70.7% 0.14 169.9)
-
Step 500
500
#00A17D
oklch(63% 0.125 169.6)
-
Step 600
600
#008869
oklch(55.7% 0.111 169.5)
-
Step 700
700
#007258
oklch(49.1% 0.097 169.9)
-
Step 800
800
#005E47
oklch(42.8% 0.086 168.9)
-
Step 900
900
#004E3B
oklch(37.7% 0.075 169.6)
-
Step 950
950
#002F22
oklch(27.1% 0.054 168.9)
#4ECCA6 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) | #C7BFA4 | 0.128 |
| Deuteranopia (no green cones) | #B5B2A9 | 0.123 |
| Tritanopia (no blue cones) | #00CDC1 | 0.040 |
| Achromatopsia (no color) | #B7B7B7 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4ECCA6
#4ECCA6
oklch(76.5% 0.125 169.7)
- #EE91BE
#EE91BE
oklch(76.6% 0.124 350)
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 #4ECCA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.019
- Emerald #06D6A0 ΔE 0.038
- Seafoam Blue #78D1B6 ΔE 0.044
- Greenblue #23C48B ΔE 0.048
- Pale Teal #82CBB2 ΔE 0.048
- Medium Turquoise #48D1CC ΔE 0.051
- Green Blue #01C08D ΔE 0.055
- Soft Green #6FC276 ΔE 0.059
Use #4ECCA6 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.