#685AC0
Closest named color: Iris (#6258C4). oklch(53.3% 0.154 286.2), rgb(104, 90, 192).
Aa
White text reads best on this color (5.50:1).
About this color
#685AC0 is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.154 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.013 away. White text reads best on it, at 5.50:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.81:1 |
| White text | 5.50:1 |
Values
| HEX | #685AC0 |
| RGB | rgb(104, 90, 192) |
| HSL | hsl(248, 45%, 55%) |
| OKLCH | oklch(53.3% 0.154 286.2) |
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 #685AC0 | 5.50:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #685AC0 | 3.81:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #685AC0 text on white | 5.50:1 | AA | Lc 77.3 | Fine for body text |
| #685AC0 text on black | 3.81:1 | AA large text | Lc -24.5 | 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 600.
-
Step 50
50
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D6D6F2
oklch(88.5% 0.038 285.6)
-
Step 300
300
#BCBBEC
oklch(80.9% 0.069 285.7)
-
Step 400
400
#9B96E3
oklch(70.8% 0.111 286.2)
-
Step 500
500
#847ADA
oklch(63.1% 0.141 286.4)
-
Step 600
600 (this color)
#685AC0
oklch(53.3% 0.154 286.2)
-
Step 700
700
#5D50AD
oklch(49.2% 0.143 286.3)
-
Step 800
800
#4B428C
oklch(42.7% 0.118 285.8)
-
Step 900
900
#3E3870
oklch(37.6% 0.093 285.9)
-
Step 950
950
#242141
oklch(26.9% 0.058 286)
#685AC0 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) | #276CC4 | 0.079 |
| Deuteranopia (no green cones) | #2566BE | 0.078 |
| Tritanopia (no blue cones) | #4C7084 | 0.130 |
| Achromatopsia (no color) | #696969 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685AC0
#685AC0
oklch(53.3% 0.154 286.2)
- #767000
#767000
oklch(53.3% 0.114 105.9)
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 #685AC0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.013
- Slate Blue #6A5ACD ΔE 0.020
- Light Indigo #6D5ACF ΔE 0.025
- Dark Periwinkle #665FD1 ΔE 0.028
- Bluey Purple #6241C7 ΔE 0.059
- Warm Blue #4B57DB ΔE 0.060
- Deep Lavender #8D5EB7 ΔE 0.066
- French Blue #436BAD ΔE 0.072
Use #685AC0 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.