#685BC1
Closest named color: Iris (#6258C4). oklch(53.5% 0.154 285.8), rgb(104, 91, 193).
Aa
White text reads best on this color (5.44:1).
About this color
#685BC1 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, 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 0.014 away. White text reads best on it, at 5.44:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.85:1 |
| White text | 5.44:1 |
Values
| HEX | #685BC1 |
| RGB | rgb(104, 91, 193) |
| HSL | hsl(248, 45%, 56%) |
| OKLCH | oklch(53.5% 0.154 285.8) |
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 #685BC1 | 5.44:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #685BC1 | 3.85:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #685BC1 text on white | 5.44:1 | AA | Lc 76.9 | Fine for body text |
| #685BC1 text on black | 3.85:1 | AA large text | Lc -24.8 | 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
#9A96E3
oklch(70.7% 0.111 285.5)
-
Step 500
500
#837ADA
oklch(63% 0.141 285.9)
-
Step 600
600 (this color)
#685BC1
oklch(53.5% 0.154 285.8)
-
Step 700
700
#5C50AD
oklch(49.1% 0.143 285.7)
-
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)
#685BC1 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) | #296CC5 | 0.077 |
| Deuteranopia (no green cones) | #2667BF | 0.077 |
| Tritanopia (no blue cones) | #4B7185 | 0.130 |
| Achromatopsia (no color) | #6A6A6A | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685BC1
#685BC1
oklch(53.5% 0.154 285.8)
- #777000
#777000
oklch(53.4% 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 #685BC1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.014
- Slate Blue #6A5ACD ΔE 0.019
- Light Indigo #6D5ACF ΔE 0.023
- Dark Periwinkle #665FD1 ΔE 0.026
- Warm Blue #4B57DB ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.061
- Deep Lavender #8D5EB7 ΔE 0.065
- Royal Blue #4169E1 ΔE 0.071
Use #685BC1 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.