#3FF4E0
Closest named color: Bright Aqua (#0BF9EA). oklch(87.5% 0.143 183.8), rgb(63, 244, 224).
Aa
Black text reads best on this color (15.22:1).
About this color
#3FF4E0 is a light, vivid teal or cyan. In OKLCH its lightness is 87%, its chroma 0.143 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Aqua (#0BF9EA), ΔE 0.017 away. Black text reads best on it, at 15.22:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Bright Aqua (#0BF9EA) |
| Black text | 15.22:1 |
| White text | 1.37:1 |
Values
| HEX | #3FF4E0 |
| RGB | rgb(63, 244, 224) |
| HSL | hsl(173, 89%, 60%) |
| OKLCH | oklch(87.5% 0.143 183.8) |
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 #3FF4E0 | 1.37:1 | Fails | Lc -20.6 | Dividers and decoration only |
| Black text on #3FF4E0 | 15.22:1 | AAA | Lc 85.7 | Fine for body text |
| #3FF4E0 text on white | 1.37:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #3FF4E0 text on black | 15.22:1 | AAA | Lc -85.6 | 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
#E4FBF7
oklch(97% 0.025 184.3)
-
Step 100
100
#C3F6EE
oklch(93.6% 0.053 184.6)
-
Step 200
200 (this color)
#3FF4E0
oklch(87.5% 0.143 183.8)
-
Step 300
300
#00DECB
oklch(80.9% 0.143 184)
-
Step 400
400
#00B9A9
oklch(70.6% 0.125 184)
-
Step 500
500
#009F91
oklch(63.1% 0.112 184)
-
Step 600
600
#00867A
oklch(55.7% 0.099 183.9)
-
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)
#3FF4E0 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) | #E8E6DF | 0.152 |
| Deuteranopia (no green cones) | #CFD4E2 | 0.143 |
| Tritanopia (no blue cones) | #00F9EE | 0.020 |
| Achromatopsia (no color) | #DBDBDB | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FF4E0
#3FF4E0
oklch(87.5% 0.143 183.8)
- #FFC3D1
#FFC3D1
oklch(87.5% 0.071 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 #3FF4E0, closest first.
No curated palette has a color within ΔE 0.04 of #3FF4E0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Aqua #0BF9EA ΔE 0.017
- Bright Turquoise #0FFEF9 ΔE 0.036
- Bright Light Blue #26F7FD ΔE 0.038
- Light Turquoise #7EF4CC ΔE 0.042
- Bright Cyan #41FDFE ΔE 0.043
- Cyan #00FFFF ΔE 0.043
- Bright Teal #01F9C6 ΔE 0.045
- Turquoise #40E0D0 ΔE 0.054
Use #3FF4E0 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.