#3F949E
Closest named color: Sea (#3C9992). oklch(61.9% 0.082 205.8), rgb(63, 148, 158).
Aa
Black text reads best on this color (5.94:1).
About this color
#3F949E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.082 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.027 away. Black text reads best on it, at 5.94:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 5.94:1 |
| White text | 3.53:1 |
Values
| HEX | #3F949E |
| RGB | rgb(63, 148, 158) |
| HSL | hsl(186, 43%, 43%) |
| OKLCH | oklch(61.9% 0.082 205.8) |
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 #3F949E | 3.53:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #3F949E | 5.94:1 | AA | Lc 41.4 | Non-text elements, placeholder text |
| #3F949E text on white | 3.53:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #3F949E text on black | 5.94:1 | AA | Lc -39.0 | 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
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CD
oklch(81% 0.041 204.3)
-
Step 400
400
#6FADB4
oklch(70.8% 0.065 204.9)
-
Step 500
500 (this color)
#3F949E
oklch(61.9% 0.082 205.8)
-
Step 600
600
#19828D
oklch(55.6% 0.089 205.9)
-
Step 700
700
#036E78
oklch(49.2% 0.083 205.9)
-
Step 800
800
#0D5961
oklch(42.5% 0.069 206.1)
-
Step 900
900
#174A4F
oklch(37.8% 0.054 204.3)
-
Step 950
950
#0F2B2F
oklch(26.9% 0.034 207.9)
#3F949E 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) | #898E9F | 0.081 |
| Deuteranopia (no green cones) | #7A849E | 0.073 |
| Tritanopia (no blue cones) | #009A97 | 0.033 |
| Achromatopsia (no color) | #888888 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F949E
#3F949E
oklch(61.9% 0.082 205.8)
- #B2726C
#B2726C
oklch(61.8% 0.082 25.5)
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 #3F949E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.027
- Teal Green #0A9396 ΔE 0.028
- Dusty Teal #4C9085 ΔE 0.036
- Persian Green #2A9D8F ΔE 0.042
- Blue Green #0F9B8E ΔE 0.043
- Cadet Blue #5F9EA0 ΔE 0.044
- Dark Cyan #008B8B ΔE 0.049
- Teal Blue #01889F ΔE 0.049
Use #3F949E 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.