#3F8586
Closest named color: Dark Cyan (#008B8B). oklch(57.2% 0.07 196.6), rgb(63, 133, 134).
Aa
Black text reads best on this color (4.91:1).
About this color
#3F8586 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.070 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.029 away. Black text reads best on it, at 4.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 4.91:1 |
| White text | 4.27:1 |
Values
| HEX | #3F8586 |
| RGB | rgb(63, 133, 134) |
| HSL | hsl(181, 36%, 39%) |
| OKLCH | oklch(57.2% 0.07 196.6) |
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 #3F8586 | 4.27:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #3F8586 | 4.91:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #3F8586 text on white | 4.27:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #3F8586 text on black | 4.91:1 | AA | Lc -32.3 | 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 600.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#AAC7C7
oklch(80.8% 0.031 196.6)
-
Step 400
400
#7BABAB
oklch(70.7% 0.051 196.1)
-
Step 500
500
#579697
oklch(63.1% 0.065 196.9)
-
Step 600
600 (this color)
#3F8586
oklch(57.2% 0.07 196.6)
-
Step 700
700
#2B6C6D
oklch(49% 0.065 196.6)
-
Step 800
800
#255859
oklch(42.6% 0.054 197.1)
-
Step 900
900
#244949
oklch(37.8% 0.042 195.5)
-
Step 950
950
#162B2B
oklch(27.2% 0.027 195.7)
#3F8586 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) | #7D7F86 | 0.073 |
| Deuteranopia (no green cones) | #717787 | 0.067 |
| Tritanopia (no blue cones) | #068985 | 0.028 |
| Achromatopsia (no color) | #7A7A7A | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8586
#3F8586
oklch(57.2% 0.07 196.6)
- #9D6769
#9D6769
oklch(57.2% 0.07 17.1)
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 #3F8586, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.029
- Teal #008080 ΔE 0.037
- Dusty Teal #4C9085 ΔE 0.038
- Teal Blue #01889F ΔE 0.042
- Teal Green #0A9396 ΔE 0.043
- Grey Blue #647D8E ΔE 0.049
- Bluegreen #017A79 ΔE 0.052
- Ocean #017B92 ΔE 0.052
Use #3F8586 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.