#4ECAA6
Closest named color: Medium Aquamarine (#66CDAA). oklch(76% 0.122 170.6), rgb(78, 202, 166).
Aa
Black text reads best on this color (10.32:1).
About this color
#4ECAA6 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 76%, its chroma 0.122 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.021 away. Black text reads best on it, at 10.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.32:1 |
| White text | 2.03:1 |
Values
| HEX | #4ECAA6 |
| RGB | rgb(78, 202, 166) |
| HSL | hsl(163, 54%, 55%) |
| OKLCH | oklch(76% 0.122 170.6) |
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 #4ECAA6 | 2.03:1 | Fails | Lc -43.8 | Non-text elements, placeholder text |
| Black text on #4ECAA6 | 10.32:1 | AAA | Lc 64.7 | Content text, not long reading |
| #4ECAA6 text on white | 2.03:1 | Fails | Lc 39.3 | Non-text elements, placeholder text |
| #4ECAA6 text on black | 10.32:1 | AAA | Lc -63.1 | 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
#D4F2E6
oklch(93.6% 0.035 169.5)
-
Step 200
200
#ACE8D3
oklch(88.4% 0.068 171.1)
-
Step 300
300 (this color)
#4ECAA6
oklch(76% 0.122 170.6)
-
Step 400
400
#00BC94
oklch(70.8% 0.139 170.4)
-
Step 500
500
#00A17F
oklch(63.1% 0.124 170.8)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#002F23
oklch(27.2% 0.053 170.5)
#4ECAA6 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) | #C4BDA4 | 0.125 |
| Deuteranopia (no green cones) | #B3B0A8 | 0.121 |
| Tritanopia (no blue cones) | #00CBC0 | 0.040 |
| Achromatopsia (no color) | #B6B6B6 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4ECAA6
#4ECAA6
oklch(76% 0.122 170.6)
- #EC90BB
#EC90BB
oklch(76.1% 0.122 350.9)
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 #4ECAA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.021
- Emerald #06D6A0 ΔE 0.042
- Seafoam Blue #78D1B6 ΔE 0.046
- Greenblue #23C48B ΔE 0.046
- Pale Teal #82CBB2 ΔE 0.049
- Medium Turquoise #48D1CC ΔE 0.051
- Green Blue #01C08D ΔE 0.053
- Topaz #13BBAF ΔE 0.057
Use #4ECAA6 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.