#3F8A79
Closest named color: Dusty Teal (#4C9085). oklch(58.1% 0.08 176.4), rgb(63, 138, 121).
Aa
Black text reads best on this color (5.12:1).
About this color
#3F8A79 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.080 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.027 away. Black text reads best on it, at 5.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #3F8A79 |
| RGB | rgb(63, 138, 121) |
| HSL | hsl(166, 37%, 39%) |
| OKLCH | oklch(58.1% 0.08 176.4) |
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 #3F8A79 | 4.09:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #3F8A79 | 5.12:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #3F8A79 text on white | 4.09:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #3F8A79 text on black | 5.12:1 | AA | Lc -33.7 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#A9C9C0
oklch(81% 0.037 176.5)
-
Step 400
400
#7AAD9F
oklch(70.7% 0.058 175.6)
-
Step 500
500
#559888
oklch(63% 0.073 176.6)
-
Step 600
600 (this color)
#3F8A79
oklch(58.1% 0.08 176.4)
-
Step 700
700
#286E5F
oklch(49% 0.074 176.4)
-
Step 800
800
#235A4E
oklch(42.7% 0.062 176.6)
-
Step 900
900
#234A41
oklch(37.7% 0.047 176.7)
-
Step 950
950
#152B26
oklch(26.9% 0.03 177.6)
#3F8A79 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) | #858278 | 0.083 |
| Deuteranopia (no green cones) | #7A7A7A | 0.080 |
| Tritanopia (no blue cones) | #178C85 | 0.025 |
| Achromatopsia (no color) | #7D7D7D | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8A79
#3F8A79
oklch(58.1% 0.08 176.4)
- #A1667C
#A1667C
oklch(58.1% 0.081 356)
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 #3F8A79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.027
- Dark Cyan #008B8B ΔE 0.034
- Slate Green #658D6D ΔE 0.043
- Teal Green #0A9396 ΔE 0.045
- Viridian #1E9167 ΔE 0.045
- Teal #008080 ΔE 0.048
- Dark Sage #598556 ΔE 0.049
- Sea #3C9992 ΔE 0.049
Use #3F8A79 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.