#685CAE
Closest named color: Iris (#6258C4). oklch(52.5% 0.126 288), rgb(104, 92, 174).
Aa
White text reads best on this color (5.62:1).
About this color
#685CAE is a medium-dark, moderately saturated purple. In OKLCH its lightness is 52%, its chroma 0.126 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.039 away. White text reads best on it, at 5.62:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.73:1 |
| White text | 5.62:1 |
Values
| HEX | #685CAE |
| RGB | rgb(104, 92, 174) |
| HSL | hsl(249, 34%, 52%) |
| OKLCH | oklch(52.5% 0.126 288) |
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 #685CAE | 5.62:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #685CAE | 3.73:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #685CAE text on white | 5.62:1 | AA | Lc 78.0 | Fine for body text |
| #685CAE text on black | 3.73:1 | AA large text | Lc -23.8 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D7D6ED
oklch(88.4% 0.031 287.7)
-
Step 300
300
#BEBBE4
oklch(80.8% 0.057 288.4)
-
Step 400
400
#9D98D6
oklch(70.7% 0.09 287.6)
-
Step 500
500
#867DCB
oklch(63% 0.116 287.9)
-
Step 600
600 (this color)
#685CAE
oklch(52.5% 0.126 288)
-
Step 700
700
#5F549F
oklch(49.2% 0.117 288.1)
-
Step 800
800
#4D4581
oklch(42.8% 0.097 287.7)
-
Step 900
900
#403A67
oklch(37.6% 0.076 288.3)
-
Step 950
950
#25223C
oklch(26.9% 0.048 288)
#685CAE 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) | #3D69B1 | 0.061 |
| Deuteranopia (no green cones) | #3D65AC | 0.059 |
| Tritanopia (no blue cones) | #556C7C | 0.106 |
| Achromatopsia (no color) | #676767 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685CAE
#685CAE
oklch(52.5% 0.126 288)
- #716E00
#716E00
oklch(52.4% 0.113 107.8)
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 #685CAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.039
- Slate Blue #6A5ACD ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.053
- Dark Periwinkle #665FD1 ΔE 0.054
- French Blue #436BAD ΔE 0.059
- Deep Lavender #8D5EB7 ΔE 0.064
- Dusky Blue #475F94 ΔE 0.065
- Dark Lavender #856798 ΔE 0.071
Use #685CAE 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.