#3F8874
Closest named color: Dusty Teal (#4C9085). oklch(57.4% 0.08 173), rgb(63, 136, 116).
Aa
Black text reads best on this color (4.98:1).
About this color
#3F8874 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.080 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.035 away. Black text reads best on it, at 4.98:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 4.98:1 |
| White text | 4.21:1 |
Values
| HEX | #3F8874 |
| RGB | rgb(63, 136, 116) |
| HSL | hsl(164, 37%, 39%) |
| OKLCH | oklch(57.4% 0.08 173) |
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 #3F8874 | 4.21:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #3F8874 | 4.98:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #3F8874 text on white | 4.21:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #3F8874 text on black | 4.98:1 | AA | Lc -32.8 | 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
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CDDED8
oklch(88.6% 0.02 172.7)
-
Step 300
300
#AAC9BE
oklch(81% 0.037 171.9)
-
Step 400
400
#7BAD9D
oklch(70.7% 0.058 172.7)
-
Step 500
500
#579885
oklch(63% 0.073 173)
-
Step 600
600 (this color)
#3F8874
oklch(57.4% 0.08 173)
-
Step 700
700
#2B6E5D
oklch(49% 0.073 173.7)
-
Step 800
800
#255A4C
oklch(42.7% 0.061 173.4)
-
Step 900
900
#244A3F
oklch(37.7% 0.048 172.7)
-
Step 950
950
#162B25
oklch(26.9% 0.03 173.8)
#3F8874 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) | #848073 | 0.083 |
| Deuteranopia (no green cones) | #797875 | 0.079 |
| Tritanopia (no blue cones) | #1D8982 | 0.026 |
| Achromatopsia (no color) | #7B7B7B | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8874
#3F8874
oklch(57.4% 0.08 173)
- #9E647D
#9E647D
oklch(57.4% 0.082 352.6)
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 #3F8874, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.035
- Dark Cyan #008B8B ΔE 0.038
- Viridian #1E9167 ΔE 0.043
- Dark Sage #598556 ΔE 0.043
- Slate Green #658D6D ΔE 0.044
- Teal #008080 ΔE 0.047
- Sea Green #2E8B57 ΔE 0.050
- Teal Green #0A9396 ΔE 0.052
Use #3F8874 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.