#406266
Closest named color: Slate (#516572). oklch(47.2% 0.04 205.2), rgb(64, 98, 102).
Aa
White text reads best on this color (6.65:1).
About this color
#406266 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.040 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.031 away. White text reads best on it, at 6.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.15:1 |
| White text | 6.65:1 |
Values
| HEX | #406266 |
| RGB | rgb(64, 98, 102) |
| HSL | hsl(186, 23%, 33%) |
| OKLCH | oklch(47.2% 0.04 205.2) |
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 #406266 | 6.65:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #406266 | 3.15:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #406266 text on white | 6.65:1 | AA | Lc 82.8 | Fine for body text |
| #406266 text on black | 3.15:1 | AA large text | Lc -19.1 | 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
#B3C4C6
oklch(80.8% 0.019 205.3)
-
Step 400
400
#8BA7AA
oklch(70.8% 0.031 204.4)
-
Step 500
500
#6E9195
oklch(63.2% 0.039 204.9)
-
Step 600
600
#557B7F
oklch(55.6% 0.043 204.2)
-
Step 700
700 (this color)
#406266
oklch(47.2% 0.04 205.2)
-
Step 800
800
#395458
oklch(42.6% 0.033 207.5)
-
Step 900
900
#314648
oklch(37.7% 0.026 203.5)
-
Step 950
950
#1D292A
oklch(27% 0.017 202.6)
#406266 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) | #5D5F66 | 0.040 |
| Deuteranopia (no green cones) | #565A66 | 0.037 |
| Tritanopia (no blue cones) | #316563 | 0.019 |
| Achromatopsia (no color) | #5C5C5C | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #406266
#406266
oklch(47.2% 0.04 205.2)
- #705350
#705350
oklch(47.2% 0.039 25.4)
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 #406266, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.031
- Dark Aqua #05696B ΔE 0.040
- Dark Green Blue #1F6357 ΔE 0.043
- YInMn Blue #415A77 ΔE 0.043
- Petrol #005F6A ΔE 0.046
- Dusty Grape #545775 ΔE 0.054
- Deep Turquoise #017374 ΔE 0.057
- Dark Aquamarine #017371 ΔE 0.057
Use #406266 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.