#685A9B
Closest named color: Dusky Blue (#475F94). oklch(51% 0.102 292.3), rgb(104, 90, 155).
Aa
White text reads best on this color (5.95:1).
About this color
#685A9B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.102 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.051 away. White text reads best on it, at 5.95:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.52:1 |
| White text | 5.95:1 |
Values
| HEX | #685A9B |
| RGB | rgb(104, 90, 155) |
| HSL | hsl(253, 27%, 48%) |
| OKLCH | oklch(51% 0.102 292.3) |
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 #685A9B | 5.95:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #685A9B | 3.52:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #685A9B text on white | 5.95:1 | AA | Lc 79.7 | Fine for body text |
| #685A9B text on black | 3.52:1 | AA large text | Lc -22.1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#D9D6EA
oklch(88.4% 0.027 292.7)
-
Step 300
300
#C1BBDE
oklch(80.8% 0.049 293.1)
-
Step 400
400
#A198CE
oklch(70.7% 0.078 291.9)
-
Step 500
500
#8B7EC1
oklch(63.1% 0.1 292.2)
-
Step 600
600
#7566AE
oklch(55.6% 0.11 292)
-
Step 700
700 (this color)
#685A9B
oklch(51% 0.102 292.3)
-
Step 800
800
#504579
oklch(42.6% 0.085 292.1)
-
Step 900
900
#433B61
oklch(37.8% 0.064 292.7)
-
Step 950
950
#272339
oklch(27.1% 0.041 291.8)
#685A9B 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) | #46649D | 0.052 |
| Deuteranopia (no green cones) | #486299 | 0.049 |
| Tritanopia (no blue cones) | #5C6673 | 0.084 |
| Achromatopsia (no color) | #646464 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685A9B
#685A9B
oklch(51% 0.102 292.3)
- #676B1A
#676B1A
oklch(50.8% 0.101 112.3)
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 #685A9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.051
- Muted Purple #805B87 ΔE 0.052
- Twilight #4E518B ΔE 0.055
- Dusty Purple #825F87 ΔE 0.059
- Dusk #4E5481 ΔE 0.061
- Dark Lavender #856798 ΔE 0.064
- French Blue #436BAD ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.066
Use #685A9B 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.