#3F8980
Closest named color: Dusty Teal (#4C9085). oklch(58% 0.075 184.8), rgb(63, 137, 128).
Aa
Black text reads best on this color (5.10:1).
About this color
#3F8980 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.075 and its hue 185°. 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 5.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #3F8980 |
| RGB | rgb(63, 137, 128) |
| HSL | hsl(173, 37%, 39%) |
| OKLCH | oklch(58% 0.075 184.8) |
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 #3F8980 | 4.11:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #3F8980 | 5.10:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #3F8980 text on white | 4.11:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #3F8980 text on black | 5.10:1 | AA | Lc -33.6 | 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
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDDDA
oklch(88.4% 0.019 184.2)
-
Step 300
300
#A9C8C3
oklch(80.8% 0.034 184.7)
-
Step 400
400
#7AACA5
oklch(70.7% 0.054 185.2)
-
Step 500
500
#55978F
oklch(63% 0.069 185.6)
-
Step 600
600 (this color)
#3F8980
oklch(58% 0.075 184.8)
-
Step 700
700
#296E66
oklch(49.2% 0.07 184.7)
-
Step 800
800
#235953
oklch(42.6% 0.058 185.4)
-
Step 900
900
#234945
oklch(37.6% 0.044 186.6)
-
Step 950
950
#152B28
oklch(27% 0.029 184.5)
#3F8980 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) | #838280 | 0.080 |
| Deuteranopia (no green cones) | #777981 | 0.076 |
| Tritanopia (no blue cones) | #0F8C86 | 0.023 |
| Achromatopsia (no color) | #7D7D7D | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8980
#3F8980
oklch(58% 0.075 184.8)
- #A16774
#A16774
oklch(58% 0.076 5.1)
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 #3F8980, 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 0.028
- Teal Green #0A9396 ΔE 0.039
- Teal #008080 ΔE 0.044
- Sea #3C9992 ΔE 0.048
- Slate Green #658D6D ΔE 0.049
- Blue Green #0F9B8E ΔE 0.052
- Teal Blue #01889F ΔE 0.053
Use #3F8980 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.