#3FAAB9
Closest named color: Turquoise Blue (#06B1C4). oklch(68.3% 0.098 208.2), rgb(63, 170, 185).
Aa
Black text reads best on this color (7.66:1).
About this color
#3FAAB9 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.098 and its hue 208°. 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 7.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.66:1 |
| White text | 2.74:1 |
Values
| HEX | #3FAAB9 |
| RGB | rgb(63, 170, 185) |
| HSL | hsl(187, 49%, 49%) |
| OKLCH | oklch(68.3% 0.098 208.2) |
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 #3FAAB9 | 2.74:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #3FAAB9 | 7.66:1 | AAA | Lc 51.3 | Large or bold text, headings |
| #3FAAB9 text on white | 2.74:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #3FAAB9 text on black | 7.66:1 | AAA | Lc -49.2 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DDEDF0
oklch(93.5% 0.017 210.2)
-
Step 200
200
#C0E0E5
oklch(88.5% 0.034 208)
-
Step 300
300
#92CCD5
oklch(80.9% 0.061 208)
-
Step 400
400 (this color)
#3FAAB9
oklch(68.3% 0.098 208.2)
-
Step 500
500
#009BAC
oklch(63.1% 0.109 208.4)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C32
oklch(26.8% 0.046 208.8)
#3FAAB9 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) | #9CA4BA | 0.094 |
| Deuteranopia (no green cones) | #8A97B9 | 0.085 |
| Tritanopia (no blue cones) | #00B1AE | 0.035 |
| Achromatopsia (no color) | #9C9C9C | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FAAB9
#3FAAB9
oklch(68.3% 0.098 208.2)
- #CF8177
#CF8177
oklch(68.3% 0.099 27.8)
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 #3FAAB9, 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 0.040
- Cadet Blue #5F9EA0 ΔE 0.044
- Greyblue #77A1B5 ΔE 0.051
- Topaz #13BBAF ΔE 0.057
- Dull Teal #5F9E8F ΔE 0.061
- Bluegrey #85A3B2 ΔE 0.064
- Sea #3C9992 ΔE 0.066
Use #3FAAB9 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.