#646089
Closest named color: Dusky Blue (#475F94). oklch(50.9% 0.064 288.4), rgb(100, 96, 137).
Aa
White text reads best on this color (5.87:1).
About this color
#646089 is a medium-dark, muted purple. In OKLCH its lightness is 51%, its chroma 0.064 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.045 away. White text reads best on it, at 5.87:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.57:1 |
| White text | 5.87:1 |
Values
| HEX | #646089 |
| RGB | rgb(100, 96, 137) |
| HSL | hsl(246, 18%, 46%) |
| OKLCH | oklch(50.9% 0.064 288.4) |
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 #646089 | 5.87:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #646089 | 3.57:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #646089 text on white | 5.87:1 | AA | Lc 79.4 | Fine for body text |
| #646089 text on black | 3.57:1 | AA large text | Lc -22.5 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D8D8E4
oklch(88.6% 0.016 286.1)
-
Step 300
300
#BFBED4
oklch(80.9% 0.031 287.8)
-
Step 400
400
#9F9CBF
oklch(70.7% 0.051 289)
-
Step 500
500
#8784AE
oklch(63.1% 0.063 287.7)
-
Step 600
600
#716D9A
oklch(55.6% 0.069 288)
-
Step 700
700 (this color)
#646089
oklch(50.9% 0.064 288.4)
-
Step 800
800
#4D4A6B
oklch(42.6% 0.054 288)
-
Step 900
900
#403E57
oklch(37.7% 0.042 287.8)
-
Step 950
950
#262433
oklch(26.9% 0.028 290.5)
#646089 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) | #55658B | 0.024 |
| Deuteranopia (no green cones) | #556488 | 0.024 |
| Tritanopia (no blue cones) | #5C676F | 0.054 |
| Achromatopsia (no color) | #656565 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646089
#646089
oklch(50.9% 0.064 288.4)
- #69693C
#69693C
oklch(51% 0.065 108.5)
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 #646089, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.045
- Dusty Grape #545775 ΔE 0.047
- Muted Purple #805B87 ΔE 0.047
- Dusty Purple #825F87 ΔE 0.049
- Dusk #4E5481 ΔE 0.051
- Slate #516572 ΔE 0.053
- Denim #3B638C ΔE 0.054
- Dull Purple #84597E ΔE 0.055
Use #646089 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.