#3F9183
Closest named color: Dusty Teal (#4C9085). oklch(60.2% 0.083 180.5), rgb(63, 145, 131).
Aa
Black text reads best on this color (5.58:1).
About this color
#3F9183 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.083 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.012 away. Black text reads best on it, at 5.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.58:1 |
| White text | 3.75:1 |
Values
| HEX | #3F9183 |
| RGB | rgb(63, 145, 131) |
| HSL | hsl(170, 39%, 41%) |
| OKLCH | oklch(60.2% 0.083 180.5) |
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 #3F9183 | 3.75:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #3F9183 | 5.58:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #3F9183 text on white | 3.75:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #3F9183 text on black | 5.58:1 | AA | Lc -36.8 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A5CAC2
oklch(81% 0.041 180.6)
-
Step 400
400
#72AEA2
oklch(70.6% 0.065 180.3)
-
Step 500
500 (this color)
#3F9183
oklch(60.2% 0.083 180.5)
-
Step 600
600
#238476
oklch(55.5% 0.09 181)
-
Step 700
700
#137063
oklch(49.1% 0.084 180.6)
-
Step 800
800
#155B51
oklch(42.6% 0.069 181.1)
-
Step 900
900
#1A4B43
oklch(37.7% 0.054 180.7)
-
Step 950
950
#112C27
oklch(27% 0.035 179.9)
#3F9183 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) | #8B8982 | 0.088 |
| Deuteranopia (no green cones) | #7E8084 | 0.082 |
| Tritanopia (no blue cones) | #00938D | 0.026 |
| Achromatopsia (no color) | #848484 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F9183
#3F9183
oklch(60.2% 0.083 180.5)
- #AA6B7E
#AA6B7E
oklch(60.1% 0.084 0.4)
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 #3F9183, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.012
- Sea #3C9992 ΔE 0.027
- Blue Green #0F9B8E ΔE 0.032
- Teal Green #0A9396 ΔE 0.032
- Persian Green #2A9D8F ΔE 0.034
- Dark Cyan #008B8B ΔE 0.037
- Ocean Green #3D9973 ΔE 0.039
- Slate Green #658D6D ΔE 0.042
Use #3F9183 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.