#4ACEA8
Closest named color: Medium Aquamarine (#66CDAA). oklch(76.9% 0.128 170.3), rgb(74, 206, 168).
Aa
Black text reads best on this color (10.68:1).
About this color
#4ACEA8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.128 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.020 away. Black text reads best on it, at 10.68:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.68:1 |
| White text | 1.96:1 |
Values
| HEX | #4ACEA8 |
| RGB | rgb(74, 206, 168) |
| HSL | hsl(163, 57%, 55%) |
| OKLCH | oklch(76.9% 0.128 170.3) |
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 #4ACEA8 | 1.96:1 | Fails | Lc -41.9 | Non-text elements, placeholder text |
| Black text on #4ACEA8 | 10.68:1 | AAA | Lc 66.4 | Content text, not long reading |
| #4ACEA8 text on white | 1.96:1 | Fails | Lc 37.5 | Non-text elements, placeholder text |
| #4ACEA8 text on black | 10.68:1 | AAA | Lc -64.9 | 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
#AAE9D2
oklch(88.5% 0.071 170.1)
-
Step 300
300 (this color)
#4ACEA8
oklch(76.9% 0.128 170.3)
-
Step 400
400
#00BC94
oklch(70.8% 0.139 170.4)
-
Step 500
500
#00A17E
oklch(63.1% 0.125 170.2)
-
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)
#4ACEA8 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) | #C8C1A6 | 0.130 |
| Deuteranopia (no green cones) | #B6B3AB | 0.126 |
| Tritanopia (no blue cones) | #00CFC3 | 0.039 |
| Achromatopsia (no color) | #B9B9B9 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4ACEA8
#4ACEA8
oklch(76.9% 0.128 170.3)
- #F191BF
#F191BF
oklch(77% 0.128 350.4)
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 #4ACEA8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.020
- Emerald #06D6A0 ΔE 0.034
- Seafoam Blue #78D1B6 ΔE 0.043
- Pale Teal #82CBB2 ΔE 0.049
- Medium Turquoise #48D1CC ΔE 0.050
- Greenblue #23C48B ΔE 0.050
- Green Blue #01C08D ΔE 0.058
- Dark Turquoise #00CED1 ΔE 0.059
Use #4ACEA8 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.