#4ACBB4
Closest named color: Medium Aquamarine (#66CDAA). oklch(76.5% 0.117 178.9), rgb(74, 203, 180).
Aa
Black text reads best on this color (10.49:1).
About this color
#4ACBB4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.117 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.024 away. Black text reads best on it, at 10.49:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.49:1 |
| White text | 2.00:1 |
Values
| HEX | #4ACBB4 |
| RGB | rgb(74, 203, 180) |
| HSL | hsl(169, 55%, 54%) |
| OKLCH | oklch(76.5% 0.117 178.9) |
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 #4ACBB4 | 2.00:1 | Fails | Lc -42.9 | Non-text elements, placeholder text |
| Black text on #4ACBB4 | 10.49:1 | AAA | Lc 65.5 | Content text, not long reading |
| #4ACBB4 text on white | 2.00:1 | Fails | Lc 38.4 | Non-text elements, placeholder text |
| #4ACBB4 text on black | 10.49:1 | AAA | Lc -63.9 | 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
#EBF9F5
oklch(97.1% 0.016 177.1)
-
Step 100
100
#D3F2EA
oklch(93.7% 0.034 178.3)
-
Step 200
200
#AAE8DA
oklch(88.5% 0.066 179.2)
-
Step 300
300 (this color)
#4ACBB4
oklch(76.5% 0.117 178.9)
-
Step 400
400
#00BAA2
oklch(70.6% 0.129 179.1)
-
Step 500
500
#00A08B
oklch(63.2% 0.115 179)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800
#005D50
oklch(42.8% 0.078 178.9)
-
Step 900
900
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#4ACBB4 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) | #C3BFB3 | 0.124 |
| Deuteranopia (no green cones) | #B0B2B6 | 0.117 |
| Tritanopia (no blue cones) | #00CEC4 | 0.026 |
| Achromatopsia (no color) | #B7B7B7 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4ACBB4
#4ACBB4
oklch(76.5% 0.117 178.9)
- #EF92B1
#EF92B1
oklch(76.5% 0.118 358.8)
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 #4ACBB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.024
- Medium Turquoise #48D1CC ΔE 0.034
- Seafoam Blue #78D1B6 ΔE 0.041
- Dark Turquoise #00CED1 ΔE 0.041
- Pale Teal #82CBB2 ΔE 0.044
- Emerald #06D6A0 ΔE 0.053
- Topaz #13BBAF ΔE 0.054
- Turquoise #40E0D0 ΔE 0.060
Use #4ACBB4 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.