#3FACB5
Closest named color: Turquoise Blue (#06B1C4). oklch(68.7% 0.098 202.9), rgb(63, 172, 181).
Aa
Black text reads best on this color (7.77:1).
About this color
#3FACB5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.098 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.025 away. Black text reads best on it, at 7.77:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.77:1 |
| White text | 2.69:1 |
Values
| HEX | #3FACB5 |
| RGB | rgb(63, 172, 181) |
| HSL | hsl(185, 48%, 48%) |
| OKLCH | oklch(68.7% 0.098 202.9) |
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 #3FACB5 | 2.69:1 | Fails | Lc -57.3 | Large or bold text, headings |
| Black text on #3FACB5 | 7.77:1 | AAA | Lc 52.0 | Large or bold text, headings |
| #3FACB5 text on white | 2.69:1 | Fails | Lc 52.1 | Large or bold text, headings |
| #3FACB5 text on black | 7.77:1 | AAA | Lc -49.8 | 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
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100
#DDEEEF
oklch(93.7% 0.018 201.1)
-
Step 200
200
#C0E0E3
oklch(88.4% 0.034 203.5)
-
Step 300
300
#91CDD2
oklch(80.9% 0.062 202.5)
-
Step 400
400 (this color)
#3FACB5
oklch(68.7% 0.098 202.9)
-
Step 500
500
#009CA6
oklch(63.1% 0.107 202.8)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#3FACB5 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) | #9FA5B6 | 0.098 |
| Deuteranopia (no green cones) | #8D98B5 | 0.090 |
| Tritanopia (no blue cones) | #00B3AE | 0.031 |
| Achromatopsia (no color) | #9D9D9D | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FACB5
#3FACB5
oklch(68.7% 0.098 202.9)
- #D0827E
#D0827E
oklch(68.7% 0.097 23.1)
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 #3FACB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.025
- Light Sea Green #20B2AA ΔE 0.031
- Cadet Blue #5F9EA0 ΔE 0.044
- Topaz #13BBAF ΔE 0.048
- Greyblue #77A1B5 ΔE 0.055
- Greeny Blue #42B395 ΔE 0.058
- Dull Teal #5F9E8F ΔE 0.058
- Bluegrey #85A3B2 ΔE 0.066
Use #3FACB5 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.