#3F8577
Closest named color: Dark Cyan (#008B8B). oklch(56.7% 0.074 178.6), rgb(63, 133, 119).
Aa
Black text reads best on this color (4.83:1).
About this color
#3F8577 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.074 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.035 away. Black text reads best on it, at 4.83:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #3F8577 |
| RGB | rgb(63, 133, 119) |
| HSL | hsl(168, 36%, 38%) |
| OKLCH | oklch(56.7% 0.074 178.6) |
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 #3F8577 | 4.34:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #3F8577 | 4.83:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #3F8577 text on white | 4.34:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #3F8577 text on black | 4.83:1 | AA | Lc -31.7 | 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
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CDDDD9
oklch(88.4% 0.018 179.3)
-
Step 300
300
#AAC8C1
oklch(80.9% 0.034 179.7)
-
Step 400
400
#7CACA1
oklch(70.7% 0.054 178.9)
-
Step 500
500
#59978A
oklch(63% 0.068 179)
-
Step 600
600 (this color)
#3F8577
oklch(56.7% 0.074 178.6)
-
Step 700
700
#2D6E61
oklch(49.2% 0.07 178.1)
-
Step 800
800
#27594F
oklch(42.6% 0.057 178.5)
-
Step 900
900
#254942
oklch(37.6% 0.044 179.8)
-
Step 950
950
#162B27
oklch(27% 0.028 180.5)
#3F8577 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) | #807E76 | 0.078 |
| Deuteranopia (no green cones) | #757678 | 0.074 |
| Tritanopia (no blue cones) | #1C8781 | 0.023 |
| Achromatopsia (no color) | #797979 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F8577
#3F8577
oklch(56.7% 0.074 178.6)
- #9B6476
#9B6476
oklch(56.8% 0.075 358.6)
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 #3F8577, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.035
- Teal #008080 ΔE 0.038
- Dusty Teal #4C9085 ΔE 0.038
- Bluegreen #017A79 ΔE 0.050
- Dark Sage #598556 ΔE 0.051
- Slate Green #658D6D ΔE 0.051
- Teal Green #0A9396 ΔE 0.052
- Viridian #1E9167 ΔE 0.054
Use #3F8577 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.