#646885
Closest named color: Metallic Blue (#4F738E). oklch(52.5% 0.046 278.6), rgb(100, 104, 133).
Aa
White text reads best on this color (5.43:1).
About this color
#646885 is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.046 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.038 away. White text reads best on it, at 5.43:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #646885 |
| RGB | rgb(100, 104, 133) |
| HSL | hsl(233, 14%, 46%) |
| OKLCH | oklch(52.5% 0.046 278.6) |
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 #646885 | 5.43:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #646885 | 3.86:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #646885 text on white | 5.43:1 | AA | Lc 77.1 | Fine for body text |
| #646885 text on black | 3.86:1 | AA large text | Lc -24.6 | 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 600.
-
Step 50
50
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D7D8E1
oklch(88.4% 0.012 281.1)
-
Step 300
300
#BDC0CE
oklch(81% 0.02 276.3)
-
Step 400
400
#9B9FB6
oklch(70.7% 0.034 277.7)
-
Step 500
500
#8387A3
oklch(63% 0.042 278.7)
-
Step 600
600 (this color)
#646885
oklch(52.5% 0.046 278.6)
-
Step 700
700
#5B5F79
oklch(49.2% 0.042 277.9)
-
Step 800
800
#4A4D62
oklch(42.6% 0.035 278.4)
-
Step 900
900
#3E4050
oklch(37.6% 0.027 279.4)
-
Step 950
950
#24262F
oklch(27% 0.017 275.4)
#646885 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) | #606B86 | 0.010 |
| Deuteranopia (no green cones) | #5E6984 | 0.009 |
| Tritanopia (no blue cones) | #5C6D72 | 0.040 |
| Achromatopsia (no color) | #6A6A6A | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646885
#646885
oklch(52.5% 0.046 278.6)
- #716B4C
#716B4C
oklch(52.5% 0.046 98.5)
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 #646885, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.038
- Slate #516572 ΔE 0.043
- Dim Gray #696969 ΔE 0.046
- Battleship Gray #6C757D ΔE 0.047
- Dull Blue #49759C ΔE 0.051
- Grey Purple #826D8C ΔE 0.052
- Dusty Purple #825F87 ΔE 0.053
- Muted Purple #805B87 ΔE 0.056
Use #646885 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.