#685BA4
Closest named color: Iris (#6258C4). oklch(51.7% 0.113 290), rgb(104, 91, 164).
Aa
White text reads best on this color (5.79:1).
About this color
#685BA4 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 52%, its chroma 0.113 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.053 away. White text reads best on it, at 5.79:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.62:1 |
| White text | 5.79:1 |
Values
| HEX | #685BA4 |
| RGB | rgb(104, 91, 164) |
| HSL | hsl(251, 29%, 50%) |
| OKLCH | oklch(51.7% 0.113 290) |
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 #685BA4 | 5.79:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #685BA4 | 3.62:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #685BA4 text on white | 5.79:1 | AA | Lc 78.9 | Fine for body text |
| #685BA4 text on black | 3.62:1 | AA large text | Lc -22.9 | 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
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6EC
oklch(88.4% 0.03 289.9)
-
Step 300
300
#BFBBE2
oklch(80.8% 0.055 289.8)
-
Step 400
400
#9F97D4
oklch(70.6% 0.088 289.9)
-
Step 500
500
#897DC8
oklch(63.1% 0.111 290.2)
-
Step 600
600
#7365B5
oklch(55.6% 0.122 289.9)
-
Step 700
700 (this color)
#685BA4
oklch(51.7% 0.113 290)
-
Step 800
800
#4F457E
oklch(42.8% 0.093 290)
-
Step 900
900
#413A65
oklch(37.6% 0.072 289.9)
-
Step 950
950
#26223B
oklch(26.9% 0.046 290.3)
#685BA4 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) | #4267A7 | 0.057 |
| Deuteranopia (no green cones) | #4364A2 | 0.054 |
| Tritanopia (no blue cones) | #596977 | 0.095 |
| Achromatopsia (no color) | #656565 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685BA4
#685BA4
oklch(51.7% 0.113 290)
- #6D6D00
#6D6D00
oklch(51.8% 0.113 109.8)
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 #685BA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.053
- Dusky Blue #475F94 ΔE 0.056
- French Blue #436BAD ΔE 0.060
- Muted Purple #805B87 ΔE 0.061
- Twilight #4E518B ΔE 0.063
- Slate Blue #6A5ACD ΔE 0.065
- Dark Lavender #856798 ΔE 0.066
- Dusty Purple #825F87 ΔE 0.067
Use #685BA4 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.