#3F939B
Closest named color: Teal Green (#0A9396). oklch(61.5% 0.081 203.8), rgb(63, 147, 155).
Aa
Black text reads best on this color (5.85:1).
About this color
#3F939B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.081 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.026 away. Black text reads best on it, at 5.85:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.85:1 |
| White text | 3.58:1 |
Values
| HEX | #3F939B |
| RGB | rgb(63, 147, 155) |
| HSL | hsl(185, 42%, 43%) |
| OKLCH | oklch(61.5% 0.081 203.8) |
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 #3F939B | 3.58:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #3F939B | 5.85:1 | AA | Lc 40.9 | Non-text elements, placeholder text |
| #3F939B text on white | 3.58:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #3F939B text on black | 5.85:1 | AA | Lc -38.5 | Non-text elements, placeholder 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 500.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A4C9CC
oklch(81% 0.04 202.5)
-
Step 400
400
#70ADB3
oklch(70.8% 0.064 203.7)
-
Step 500
500 (this color)
#3F939B
oklch(61.5% 0.081 203.8)
-
Step 600
600
#1B828B
oklch(55.6% 0.088 204)
-
Step 700
700
#076E76
oklch(49.1% 0.082 203.8)
-
Step 800
800
#0F5A60
oklch(42.8% 0.068 203.3)
-
Step 900
900
#184A4E
oklch(37.8% 0.053 202.6)
-
Step 950
950
#102B2E
oklch(27% 0.033 205.1)
#3F939B 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) | #888D9C | 0.081 |
| Deuteranopia (no green cones) | #7A839B | 0.074 |
| Tritanopia (no blue cones) | #009895 | 0.031 |
| Achromatopsia (no color) | #878787 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F939B
#3F939B
oklch(61.5% 0.081 203.8)
- #B1716D
#B1716D
oklch(61.6% 0.082 23.6)
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 #3F939B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.026
- Sea #3C9992 ΔE 0.026
- Dusty Teal #4C9085 ΔE 0.032
- Persian Green #2A9D8F ΔE 0.041
- Blue Green #0F9B8E ΔE 0.042
- Dark Cyan #008B8B ΔE 0.045
- Cadet Blue #5F9EA0 ΔE 0.046
- Teal Blue #01889F ΔE 0.047
Use #3F939B 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.