#3FA4BF
Closest named color: Turquoise Blue (#06B1C4). oklch(67.1% 0.1 218.8), rgb(63, 164, 191).
Aa
Black text reads best on this color (7.27:1).
About this color
#3FA4BF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.100 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.037 away. Black text reads best on it, at 7.27:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.27:1 |
| White text | 2.88:1 |
Values
| HEX | #3FA4BF |
| RGB | rgb(63, 164, 191) |
| HSL | hsl(193, 50%, 50%) |
| OKLCH | oklch(67.1% 0.1 218.8) |
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 #3FA4BF | 2.88:1 | Fails | Lc -60.2 | Content text, not long reading |
| Black text on #3FA4BF | 7.27:1 | AAA | Lc 49.2 | Large or bold text, headings |
| #3FA4BF text on white | 2.88:1 | Fails | Lc 54.8 | Large or bold text, headings |
| #3FA4BF text on black | 7.27:1 | AAA | Lc -47.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DDEDF2
oklch(93.6% 0.018 218.4)
-
Step 200
200
#C1DFE9
oklch(88.5% 0.035 219.9)
-
Step 300
300
#93CBDC
oklch(80.9% 0.062 218.6)
-
Step 400
400 (this color)
#3FA4BF
oklch(67.1% 0.1 218.8)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586B
oklch(42.5% 0.077 219.1)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#3FA4BF 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) | #93A0C0 | 0.085 |
| Deuteranopia (no green cones) | #8192BF | 0.077 |
| Tritanopia (no blue cones) | #00ADAD | 0.048 |
| Achromatopsia (no color) | #989898 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA4BF
#3FA4BF
oklch(67.1% 0.1 218.8)
- #CA8067
#CA8067
oklch(67.1% 0.099 39.4)
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 #3FA4BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.037
- Cadet Blue #5F9EA0 ΔE 0.047
- Greyblue #77A1B5 ΔE 0.049
- Light Sea Green #20B2AA ΔE 0.060
- Bluegrey #85A3B2 ΔE 0.067
- Sea #3C9992 ΔE 0.068
- Dull Teal #5F9E8F ΔE 0.069
- Faded Blue #658CBB ΔE 0.070
Use #3FA4BF 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.