#406575
Closest named color: Slate (#516572). oklch(48.5% 0.049 227.2), rgb(64, 101, 117).
Aa
White text reads best on this color (6.29:1).
About this color
#406575 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.049 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.021 away. White text reads best on it, at 6.29:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.33:1 |
| White text | 6.29:1 |
Values
| HEX | #406575 |
| RGB | rgb(64, 101, 117) |
| HSL | hsl(198, 29%, 35%) |
| OKLCH | oklch(48.5% 0.049 227.2) |
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 #406575 | 6.29:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #406575 | 3.33:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #406575 text on white | 6.29:1 | AA | Lc 81.3 | Fine for body text |
| #406575 text on black | 3.33:1 | AA large text | Lc -20.6 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D1DBE0
oklch(88.5% 0.013 228.9)
-
Step 300
300
#B1C4CD
oklch(80.9% 0.024 227.8)
-
Step 400
400
#88A6B3
oklch(70.7% 0.038 226)
-
Step 500
500
#6A90A1
oklch(63.1% 0.049 227.3)
-
Step 600
600
#517A8C
oklch(55.6% 0.053 227.4)
-
Step 700
700 (this color)
#406575
oklch(48.5% 0.049 227.2)
-
Step 800
800
#365461
oklch(42.8% 0.042 227.1)
-
Step 900
900
#2F454F
oklch(37.6% 0.032 227.9)
-
Step 950
950
#1C292E
oklch(27.1% 0.02 223.6)
#406575 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) | #5D6376 | 0.038 |
| Deuteranopia (no green cones) | #555D75 | 0.034 |
| Tritanopia (no blue cones) | #296A6A | 0.035 |
| Achromatopsia (no color) | #606060 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #406575
#406575
oklch(48.5% 0.049 227.2)
- #775747
#775747
oklch(48.6% 0.049 47.7)
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 #406575, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.021
- YInMn Blue #415A77 ΔE 0.035
- Denim #3B638C ΔE 0.040
- Dark Aqua #05696B ΔE 0.046
- Dusty Grape #545775 ΔE 0.048
- Petrol #005F6A ΔE 0.053
- Deep Turquoise #017374 ΔE 0.054
- Dark Aquamarine #017371 ΔE 0.056
Use #406575 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.