#3FE3B7
Closest named color: Aqua Marine (#2EE8BB). oklch(82.2% 0.147 170.4), rgb(63, 227, 183).
Aa
Black text reads best on this color (12.88:1).
About this color
#3FE3B7 is a light, vivid teal or cyan. In OKLCH its lightness is 82%, its chroma 0.147 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Marine (#2EE8BB), ΔE 0.013 away. Black text reads best on it, at 12.88:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Aqua Marine (#2EE8BB) |
| Black text | 12.88:1 |
| White text | 1.63:1 |
Values
| HEX | #3FE3B7 |
| RGB | rgb(63, 227, 183) |
| HSL | hsl(164, 75%, 57%) |
| OKLCH | oklch(82.2% 0.147 170.4) |
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 #3FE3B7 | 1.63:1 | Fails | Lc -31.2 | Non-text elements, placeholder text |
| Black text on #3FE3B7 | 12.88:1 | AAA | Lc 76.1 | Fine for body text |
| #3FE3B7 text on white | 1.63:1 | Fails | Lc 27.7 | Dividers and decoration only |
| #3FE3B7 text on black | 12.88:1 | AAA | Lc -75.3 | Fine for body text |
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
#E9FAF3
oklch(97.1% 0.02 169.4)
-
Step 100
100
#CFF4E6
oklch(93.7% 0.043 170.5)
-
Step 200
200
#A2EBD1
oklch(88.5% 0.081 170.2)
-
Step 300
300 (this color)
#3FE3B7
oklch(82.2% 0.147 170.4)
-
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)
#3FE3B7 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) | #DCD4B5 | 0.149 |
| Deuteranopia (no green cones) | #C7C4BA | 0.144 |
| Tritanopia (no blue cones) | #00E5D6 | 0.041 |
| Achromatopsia (no color) | #CBCBCB | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FE3B7
#3FE3B7
oklch(82.2% 0.147 170.4)
- #FFA5CF
#FFA5CF
oklch(82.3% 0.117 350.5)
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 #3FE3B7, closest first.
No curated palette has a color within ΔE 0.04 of #3FE3B7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Marine #2EE8BB ΔE 0.013
- Turquoise #40E0D0 ΔE 0.039
- Emerald #06D6A0 ΔE 0.048
- Aqua Green #12E193 ΔE 0.051
- Bright Teal #01F9C6 ΔE 0.057
- Seafoam Blue #78D1B6 ΔE 0.058
- Medium Aquamarine #66CDAA ΔE 0.059
- Light Teal #90E4C1 ΔE 0.061
Use #3FE3B7 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.