#3FEDDF
Closest named color: Bright Aqua (#0BF9EA). oklch(85.8% 0.137 186.8), rgb(63, 237, 223).
Aa
Black text reads best on this color (14.39:1).
About this color
#3FEDDF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 86%, its chroma 0.137 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Aqua (#0BF9EA), ΔE 0.031 away. Black text reads best on it, at 14.39:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Bright Aqua (#0BF9EA) |
| Black text | 14.39:1 |
| White text | 1.45:1 |
Values
| HEX | #3FEDDF |
| RGB | rgb(63, 237, 223) |
| HSL | hsl(175, 83%, 59%) |
| OKLCH | oklch(85.8% 0.137 186.8) |
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 #3FEDDF | 1.45:1 | Fails | Lc -24.3 | Dividers and decoration only |
| Black text on #3FEDDF | 14.39:1 | AAA | Lc 82.3 | Fine for body text |
| #3FEDDF text on white | 1.45:1 | Fails | Lc 21.4 | Dividers and decoration only |
| #3FEDDF text on black | 14.39:1 | AAA | Lc -82.0 | 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
#E5FBF8
oklch(97.1% 0.023 186.9)
-
Step 100
100
#C4F6EF
oklch(93.7% 0.052 185.8)
-
Step 200
200 (this color)
#3FEDDF
oklch(85.8% 0.137 186.8)
-
Step 300
300
#00DDCF
oklch(80.8% 0.141 186.7)
-
Step 400
400
#00B9AD
oklch(70.7% 0.124 186.6)
-
Step 500
500
#009F94
oklch(63.2% 0.111 186.2)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#3FEDDF 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) | #E0E0DF | 0.146 |
| Deuteranopia (no green cones) | #C8CEE1 | 0.138 |
| Tritanopia (no blue cones) | #00F3E8 | 0.018 |
| Achromatopsia (no color) | #D6D6D6 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FEDDF
#3FEDDF
oklch(85.8% 0.137 186.8)
- #FFBBC7
#FFBBC7
oklch(85.8% 0.08 7.2)
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 #3FEDDF, closest first.
No curated palette has a color within ΔE 0.04 of #3FEDDF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Aqua #0BF9EA ΔE 0.031
- Turquoise #40E0D0 ΔE 0.036
- Bright Light Blue #26F7FD ΔE 0.042
- Bright Turquoise #0FFEF9 ΔE 0.048
- Aqua Marine #2EE8BB ΔE 0.050
- Light Turquoise #7EF4CC ΔE 0.052
- Bright Cyan #41FDFE ΔE 0.053
- Robin's Egg #6DEDFD ΔE 0.053
Use #3FEDDF 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.