#3AC8A4
Closest named color: Medium Aquamarine (#66CDAA). oklch(74.9% 0.13 171.8), rgb(58, 200, 164).
Aa
Black text reads best on this color (9.97:1).
About this color
#3AC8A4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.130 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.035 away. Black text reads best on it, at 9.97:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 9.97:1 |
| White text | 2.10:1 |
Values
| HEX | #3AC8A4 |
| RGB | rgb(58, 200, 164) |
| HSL | hsl(165, 56%, 51%) |
| OKLCH | oklch(74.9% 0.13 171.8) |
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 #3AC8A4 | 2.10:1 | Fails | Lc -45.4 | Large or bold text, headings |
| Black text on #3AC8A4 | 9.97:1 | AAA | Lc 63.1 | Content text, not long reading |
| #3AC8A4 text on white | 2.10:1 | Fails | Lc 40.8 | Non-text elements, placeholder text |
| #3AC8A4 text on black | 9.97:1 | AAA | Lc -61.5 | 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 400.
-
Step 50
50
#EFF8F4
oklch(97.1% 0.011 167.8)
-
Step 100
100
#DBEFE8
oklch(93.5% 0.023 172.8)
-
Step 200
200
#BCE3D6
oklch(88.4% 0.044 173)
-
Step 300
300
#88D2BA
oklch(80.8% 0.082 171.7)
-
Step 400
400 (this color)
#3AC8A4
oklch(74.9% 0.13 171.8)
-
Step 500
500
#00A181
oklch(63.2% 0.122 172)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#002E23
oklch(26.8% 0.052 171.9)
#3AC8A4 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) | #C2BBA2 | 0.134 |
| Deuteranopia (no green cones) | #AFADA7 | 0.129 |
| Tritanopia (no blue cones) | #00CABE | 0.036 |
| Achromatopsia (no color) | #B3B3B3 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3AC8A4
#3AC8A4
oklch(74.9% 0.13 171.8)
- #EC8AB7
#EC8AB7
oklch(75% 0.13 351.7)
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 #3AC8A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.035
- Greenblue #23C48B ΔE 0.037
- Green Blue #01C08D ΔE 0.041
- Emerald #06D6A0 ΔE 0.043
- Topaz #13BBAF ΔE 0.048
- Greeny Blue #42B395 ΔE 0.058
- Medium Turquoise #48D1CC ΔE 0.058
- Seafoam Blue #78D1B6 ΔE 0.059
Use #3AC8A4 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.