#3FC2A4
Closest named color: Topaz (#13BBAF). oklch(73.6% 0.121 174.3), rgb(63, 194, 164).
Aa
Black text reads best on this color (9.46:1).
About this color
#3FC2A4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.121 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.034 away. Black text reads best on it, at 9.46:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.46:1 |
| White text | 2.21:1 |
Values
| HEX | #3FC2A4 |
| RGB | rgb(63, 194, 164) |
| HSL | hsl(166, 52%, 50%) |
| OKLCH | oklch(73.6% 0.121 174.3) |
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 #3FC2A4 | 2.21:1 | Fails | Lc -48.1 | Large or bold text, headings |
| Black text on #3FC2A4 | 9.46:1 | AAA | Lc 60.6 | Content text, not long reading |
| #3FC2A4 text on white | 2.21:1 | Fails | Lc 43.3 | Non-text elements, placeholder text |
| #3FC2A4 text on black | 9.46:1 | AAA | Lc -58.8 | Large or bold text, headings |
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
#EFF8F5
oklch(97.2% 0.01 174.3)
-
Step 100
100
#DCEFE9
oklch(93.6% 0.022 175)
-
Step 200
200
#BEE3D7
oklch(88.6% 0.042 173.7)
-
Step 300
300
#8CD1BD
oklch(80.9% 0.075 174.2)
-
Step 400
400 (this color)
#3FC2A4
oklch(73.6% 0.121 174.3)
-
Step 500
500
#00A084
oklch(63% 0.119 174.3)
-
Step 600
600
#00876F
oklch(55.6% 0.106 174.3)
-
Step 700
700
#00715D
oklch(49% 0.093 174.7)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#3FC2A4 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) | #BBB6A3 | 0.126 |
| Deuteranopia (no green cones) | #A9A9A6 | 0.120 |
| Tritanopia (no blue cones) | #00C4B9 | 0.030 |
| Achromatopsia (no color) | #AEAEAE | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FC2A4
#3FC2A4
oklch(73.6% 0.121 174.3)
- #E588AE
#E588AE
oklch(73.6% 0.122 354.5)
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 #3FC2A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.034
- Green Blue #01C08D ΔE 0.040
- Greenblue #23C48B ΔE 0.041
- Greeny Blue #42B395 ΔE 0.042
- Medium Aquamarine #66CDAA ΔE 0.044
- Light Sea Green #20B2AA ΔE 0.054
- Emerald #06D6A0 ΔE 0.060
- Dark Turquoise #00CED1 ΔE 0.062
Use #3FC2A4 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.