#3FA8BF
Closest named color: Turquoise Blue (#06B1C4). oklch(68.1% 0.1 215), rgb(63, 168, 191).
Aa
Black text reads best on this color (7.56:1).
About this color
#3FA8BF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.100 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.028 away. Black text reads best on it, at 7.56:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.56:1 |
| White text | 2.77:1 |
Values
| HEX | #3FA8BF |
| RGB | rgb(63, 168, 191) |
| HSL | hsl(191, 50%, 50%) |
| OKLCH | oklch(68.1% 0.1 215) |
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 #3FA8BF | 2.77:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #3FA8BF | 7.56:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #3FA8BF text on white | 2.77:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #3FA8BF text on black | 7.56:1 | AAA | Lc -48.6 | 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
#DDEDF1
oklch(93.5% 0.018 214.4)
-
Step 200
200
#C0DFE8
oklch(88.4% 0.035 217.2)
-
Step 300
300
#92CBDA
oklch(80.8% 0.062 215.9)
-
Step 400
400 (this color)
#3FA8BF
oklch(68.1% 0.1 215)
-
Step 500
500
#009AB3
oklch(63.1% 0.111 214.6)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#3FA8BF 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) | #98A3C0 | 0.089 |
| Deuteranopia (no green cones) | #8695BF | 0.082 |
| Tritanopia (no blue cones) | #00B1AF | 0.045 |
| Achromatopsia (no color) | #9B9B9B | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA8BF
#3FA8BF
oklch(68.1% 0.1 215)
- #CE826E
#CE826E
oklch(68.1% 0.099 35.5)
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 #3FA8BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.028
- Cadet Blue #5F9EA0 ΔE 0.048
- Greyblue #77A1B5 ΔE 0.049
- Light Sea Green #20B2AA ΔE 0.051
- Bluegrey #85A3B2 ΔE 0.064
- Topaz #13BBAF ΔE 0.068
- Dull Teal #5F9E8F ΔE 0.068
- Bluey Grey #89A0B0 ΔE 0.070
Use #3FA8BF 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.