#406C69
Closest named color: Slate (#516572). oklch(49.8% 0.049 190.1), rgb(64, 108, 105).
Aa
White text reads best on this color (5.88:1).
About this color
#406C69 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.049 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.036 away. White text reads best on it, at 5.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.56:1 |
| White text | 5.88:1 |
Values
| HEX | #406C69 |
| RGB | rgb(64, 108, 105) |
| HSL | hsl(176, 26%, 34%) |
| OKLCH | oklch(49.8% 0.049 190.1) |
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 #406C69 | 5.88:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #406C69 | 3.56:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #406C69 text on white | 5.88:1 | AA | Lc 79.4 | Fine for body text |
| #406C69 text on black | 3.56:1 | AA large text | Lc -22.4 | 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
#D0DCDB
oklch(88.5% 0.013 190.9)
-
Step 300
300
#B0C6C4
oklch(80.9% 0.024 190)
-
Step 400
400
#86A9A6
oklch(70.8% 0.038 189.9)
-
Step 500
500
#679390
oklch(63% 0.048 190.7)
-
Step 600
600
#4D7D7A
oklch(55.5% 0.052 190.7)
-
Step 700
700 (this color)
#406C69
oklch(49.8% 0.049 190.1)
-
Step 800
800
#335654
oklch(42.6% 0.041 191.1)
-
Step 900
900
#2D4745
oklch(37.6% 0.032 189.8)
-
Step 950
950
#1B2A29
oklch(27.1% 0.02 190.8)
#406C69 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) | #676869 | 0.051 |
| Deuteranopia (no green cones) | #5F626A | 0.048 |
| Tritanopia (no blue cones) | #2E6E6B | 0.016 |
| Achromatopsia (no color) | #646464 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #406C69
#406C69
oklch(49.8% 0.049 190.1)
- #7C575C
#7C575C
oklch(49.8% 0.05 10.1)
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 #406C69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.037
- Deep Turquoise #017374 ΔE 0.037
- Dark Aqua #05696B ΔE 0.040
- Deep Aqua #08787F ΔE 0.047
- Bluegreen #017A79 ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.051
- Dim Gray #696969 ΔE 0.054
Use #406C69 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.