#685BC4
Closest named color: Iris (#6258C4). oklch(53.7% 0.158 285.4), rgb(104, 91, 196).
Aa
White text reads best on this color (5.40:1).
About this color
#685BC4 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.158 and its hue 285°. 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 5.40:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #685BC4 |
| RGB | rgb(104, 91, 196) |
| HSL | hsl(247, 47%, 56%) |
| OKLCH | oklch(53.7% 0.158 285.4) |
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 #685BC4 | 5.40:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #685BC4 | 3.88:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #685BC4 text on white | 5.40:1 | AA | Lc 76.7 | Fine for body text |
| #685BC4 text on black | 3.88:1 | AA large text | Lc -25.0 | 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
#D6D6F3
oklch(88.5% 0.04 285.6)
-
Step 300
300
#BBBBED
oklch(80.9% 0.07 284.7)
-
Step 400
400
#9A96E4
oklch(70.7% 0.113 285.5)
-
Step 500
500
#827ADD
oklch(63.1% 0.146 285.1)
-
Step 600
600 (this color)
#685BC4
oklch(53.7% 0.158 285.4)
-
Step 700
700
#5B4FAF
oklch(49% 0.147 285.3)
-
Step 800
800
#4B418E
oklch(42.7% 0.123 285.9)
-
Step 900
900
#3E3871
oklch(37.7% 0.095 285.7)
-
Step 950
950
#242142
oklch(26.9% 0.06 285.8)
#685BC4 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) | #256DC8 | 0.079 |
| Deuteranopia (no green cones) | #2167C2 | 0.079 |
| Tritanopia (no blue cones) | #497287 | 0.133 |
| Achromatopsia (no color) | #6A6A6A | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685BC4
#685BC4
oklch(53.7% 0.158 285.4)
- #787100
#787100
oklch(53.8% 0.114 105.3)
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 #685BC4, 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 0.015
- Light Indigo #6D5ACF ΔE 0.019
- Dark Periwinkle #665FD1 ΔE 0.021
- Warm Blue #4B57DB ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.060
- Deep Lavender #8D5EB7 ΔE 0.067
- Royal Blue #4169E1 ΔE 0.068
Use #685BC4 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.