#3F6465
Closest named color: Slate (#516572). oklch(47.6% 0.042 198), rgb(63, 100, 101).
Aa
White text reads best on this color (6.51:1).
About this color
#3F6465 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.042 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.033 away. White text reads best on it, at 6.51:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.22:1 |
| White text | 6.51:1 |
Values
| HEX | #3F6465 |
| RGB | rgb(63, 100, 101) |
| HSL | hsl(182, 23%, 32%) |
| OKLCH | oklch(47.6% 0.042 198) |
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 #3F6465 | 6.51:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #3F6465 | 3.22:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #3F6465 text on white | 6.51:1 | AA | Lc 82.2 | Fine for body text |
| #3F6465 text on black | 3.22:1 | AA large text | Lc -19.7 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D1DBDC
oklch(88.4% 0.011 204.1)
-
Step 300
300
#B2C5C5
oklch(80.9% 0.021 196.7)
-
Step 400
400
#8AA7A8
oklch(70.7% 0.032 199)
-
Step 500
500
#6C9293
oklch(63.2% 0.042 198.2)
-
Step 600
600
#537C7D
oklch(55.7% 0.046 197.9)
-
Step 700
700 (this color)
#3F6465
oklch(47.6% 0.042 198)
-
Step 800
800
#385556
oklch(42.7% 0.035 198.7)
-
Step 900
900
#304647
oklch(37.6% 0.027 199.6)
-
Step 950
950
#1D2929
oklch(27% 0.017 196.2)
#3F6465 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) | #5F6165 | 0.043 |
| Deuteranopia (no green cones) | #585B65 | 0.041 |
| Tritanopia (no blue cones) | #306664 | 0.016 |
| Achromatopsia (no color) | #5E5E5E | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F6465
#3F6465
oklch(47.6% 0.042 198)
- #735353
#735353
oklch(47.6% 0.043 18.8)
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 #3F6465, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.033
- Dark Aqua #05696B ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.040
- Petrol #005F6A ΔE 0.048
- YInMn Blue #415A77 ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.051
- Deep Turquoise #017374 ΔE 0.051
- Dusty Grape #545775 ΔE 0.061
Use #3F6465 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.