#3F8A7B
Closest named color: Dusty Teal (#4C9085). oklch(58.1% 0.078 178.4), rgb(63, 138, 123).
Aa
Black text reads best on this color (5.13:1).
About this color
#3F8A7B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.078 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.025 away. Black text reads best on it, at 5.13:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.13:1 |
| White text | 4.09:1 |
Values
| HEX | #3F8A7B |
| RGB | rgb(63, 138, 123) |
| HSL | hsl(168, 37%, 39%) |
| OKLCH | oklch(58.1% 0.078 178.4) |
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 #3F8A7B | 4.09:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #3F8A7B | 5.13:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #3F8A7B text on white | 4.09:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #3F8A7B text on black | 5.13:1 | AA | Lc -33.8 | 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 600.
-
Step 50
50
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#A9C8C1
oklch(80.8% 0.035 180.2)
-
Step 400
400
#7AADA1
oklch(70.8% 0.057 178.3)
-
Step 500
500
#55988A
oklch(63.1% 0.072 178.8)
-
Step 600
600 (this color)
#3F8A7B
oklch(58.1% 0.078 178.4)
-
Step 700
700
#286E61
oklch(49% 0.073 178.7)
-
Step 800
800
#235A4F
oklch(42.7% 0.061 178)
-
Step 900
900
#234A42
oklch(37.8% 0.047 178.6)
-
Step 950
950
#152B26
oklch(26.9% 0.03 177.6)
#3F8A7B 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) | #85837A | 0.083 |
| Deuteranopia (no green cones) | #797A7C | 0.078 |
| Tritanopia (no blue cones) | #158C85 | 0.024 |
| Achromatopsia (no color) | #7D7D7D | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8A7B
#3F8A7B
oklch(58.1% 0.078 178.4)
- #A1677A
#A1677A
oklch(58.2% 0.078 358.6)
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 #3F8A7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.025
- Dark Cyan #008B8B ΔE 0.032
- Teal Green #0A9396 ΔE 0.043
- Slate Green #658D6D ΔE 0.044
- Teal #008080 ΔE 0.047
- Viridian #1E9167 ΔE 0.047
- Sea #3C9992 ΔE 0.048
- Blue Green #0F9B8E ΔE 0.050
Use #3F8A7B 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.