#3AFFEF
Closest named color: Bright Turquoise (#0FFEF9). oklch(90.5% 0.149 186.4), rgb(58, 255, 239).
Aa
Black text reads best on this color (16.73:1).
About this color
#3AFFEF is a very light, vivid teal or cyan. In OKLCH its lightness is 90%, its chroma 0.149 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Turquoise (#0FFEF9), ΔE 0.016 away. Black text reads best on it, at 16.73:1.
| Hue family | Teals and cyans |
| Lightness | very light (90%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Bright Turquoise (#0FFEF9) |
| Black text | 16.73:1 |
| White text | 1.25:1 |
Values
| HEX | #3AFFEF |
| RGB | rgb(58, 255, 239) |
| HSL | hsl(175, 100%, 61%) |
| OKLCH | oklch(90.5% 0.149 186.4) |
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 #3AFFEF | 1.25:1 | Fails | Lc -14.1 | Not readable |
| Black text on #3AFFEF | 16.73:1 | AAA | Lc 91.4 | Preferred for body text |
| #3AFFEF text on white | 1.25:1 | Fails | Lc 12.1 | Not readable |
| #3AFFEF text on black | 16.73:1 | AAA | Lc -91.8 | Preferred 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
#E3FBF8
oklch(97% 0.025 187.7)
-
Step 100
100
#C1F7F0
oklch(93.7% 0.056 186.5)
-
Step 200
200 (this color)
#3AFFEF
oklch(90.5% 0.149 186.4)
-
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
#00857C
oklch(55.5% 0.097 186.5)
-
Step 700
700
#007068
oklch(49.1% 0.086 186.2)
-
Step 800
800
#005C55
oklch(42.7% 0.075 185.9)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#3AFFEF 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) | #F1F1EF | 0.157 |
| Deuteranopia (no green cones) | #D7DDF1 | 0.150 |
| Tritanopia (no blue cones) | #00FFFA | 0.017 |
| Achromatopsia (no color) | #E5E5E5 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3AFFEF
#3AFFEF
oklch(90.5% 0.149 186.4)
- #FFD2DA
#FFD2DA
oklch(90.4% 0.052 6.2)
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 #3AFFEF, closest first.
No curated palette has a color within ΔE 0.04 of #3AFFEF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Turquoise #0FFEF9 ΔE 0.016
- Bright Aqua #0BF9EA ΔE 0.021
- Cyan #00FFFF ΔE 0.023
- Bright Cyan #41FDFE ΔE 0.024
- Bright Light Blue #26F7FD ΔE 0.034
- Aquamarine #7FFFD4 ΔE 0.047
- Light Aqua #8CFFDB ΔE 0.050
- Light Turquoise #7EF4CC ΔE 0.052
Use #3AFFEF 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.