#406D6D
Closest named color: Slate (#516572). oklch(50.2% 0.05 195.7), rgb(64, 109, 109).
Aa
White text reads best on this color (5.79:1).
About this color
#406D6D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.050 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.034 away. White text reads best on it, at 5.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.62:1 |
| White text | 5.79:1 |
Values
| HEX | #406D6D |
| RGB | rgb(64, 109, 109) |
| HSL | hsl(180, 26%, 34%) |
| OKLCH | oklch(50.2% 0.05 195.7) |
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 #406D6D | 5.79:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #406D6D | 3.62:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #406D6D text on white | 5.79:1 | AA | Lc 78.9 | Fine for body text |
| #406D6D text on black | 3.62:1 | AA large text | Lc -22.9 | 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
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D0DCDC
oklch(88.5% 0.013 196.9)
-
Step 300
300
#B0C6C5
oklch(81% 0.024 193.4)
-
Step 400
400
#85A8A8
oklch(70.6% 0.038 196.3)
-
Step 500
500
#669393
oklch(63.1% 0.049 196)
-
Step 600
600
#4C7D7D
oklch(55.5% 0.053 195.7)
-
Step 700
700 (this color)
#406D6D
oklch(50.2% 0.05 195.7)
-
Step 800
800
#335656
oklch(42.7% 0.041 195.7)
-
Step 900
900
#2D4747
oklch(37.7% 0.032 195.9)
-
Step 950
950
#1B2A2A
oklch(27.2% 0.02 196)
#406D6D 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) | #68696D | 0.052 |
| Deuteranopia (no green cones) | #5F636D | 0.048 |
| Tritanopia (no blue cones) | #2C706D | 0.019 |
| Achromatopsia (no color) | #656565 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #406D6D
#406D6D
oklch(50.2% 0.05 195.7)
- #7E595A
#7E595A
oklch(50.3% 0.049 17.2)
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 #406D6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.034
- Deep Turquoise #017374 ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.036
- Dark Aqua #05696B ΔE 0.042
- Deep Aqua #08787F ΔE 0.043
- Bluegreen #017A79 ΔE 0.046
- Dim Gray #696969 ΔE 0.053
- Dark Green Blue #1F6357 ΔE 0.055
Use #406D6D 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.