#3FEFDB
Closest named color: Bright Aqua (#0BF9EA). oklch(86.1% 0.14 183.6), rgb(63, 239, 219).
Aa
Black text reads best on this color (14.58:1).
About this color
#3FEFDB is a light, vivid teal or cyan. In OKLCH its lightness is 86%, its chroma 0.140 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Aqua (#0BF9EA), ΔE 0.028 away. Black text reads best on it, at 14.58:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Bright Aqua (#0BF9EA) |
| Black text | 14.58:1 |
| White text | 1.44:1 |
Values
| HEX | #3FEFDB |
| RGB | rgb(63, 239, 219) |
| HSL | hsl(173, 85%, 59%) |
| OKLCH | oklch(86.1% 0.14 183.6) |
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 #3FEFDB | 1.44:1 | Fails | Lc -23.5 | Dividers and decoration only |
| Black text on #3FEFDB | 14.58:1 | AAA | Lc 83.1 | Fine for body text |
| #3FEFDB text on white | 1.44:1 | Fails | Lc 20.6 | Dividers and decoration only |
| #3FEFDB text on black | 14.58:1 | AAA | Lc -82.8 | 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 200.
-
Step 50
50
#E5FBF7
oklch(97.1% 0.024 183.8)
-
Step 100
100
#C4F6ED
oklch(93.6% 0.052 183)
-
Step 200
200 (this color)
#3FEFDB
oklch(86.1% 0.14 183.6)
-
Step 300
300
#00DECA
oklch(80.9% 0.144 183.5)
-
Step 400
400
#00B9A9
oklch(70.6% 0.125 184)
-
Step 500
500
#009F90
oklch(63.1% 0.112 183.2)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#3FEFDB 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) | #E3E1DA | 0.149 |
| Deuteranopia (no green cones) | #CBD0DD | 0.140 |
| Tritanopia (no blue cones) | #00F4E9 | 0.020 |
| Achromatopsia (no color) | #D7D7D7 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FEFDB
#3FEFDB
oklch(86.1% 0.14 183.6)
- #FFBCCC
#FFBCCC
oklch(86.1% 0.08 3.1)
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 #3FEFDB, closest first.
No curated palette has a color within ΔE 0.04 of #3FEFDB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Aqua #0BF9EA ΔE 0.028
- Turquoise #40E0D0 ΔE 0.040
- Aqua Marine #2EE8BB ΔE 0.045
- Bright Light Blue #26F7FD ΔE 0.045
- Light Turquoise #7EF4CC ΔE 0.046
- Bright Turquoise #0FFEF9 ΔE 0.048
- Bright Teal #01F9C6 ΔE 0.048
- Bright Cyan #41FDFE ΔE 0.053
Use #3FEFDB 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.