#685AB2
Closest named color: Iris (#6258C4). oklch(52.4% 0.135 288.2), rgb(104, 90, 178).
Aa
White text reads best on this color (5.68:1).
About this color
#685AB2 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 52%, its chroma 0.135 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.031 away. White text reads best on it, at 5.68:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.69:1 |
| White text | 5.68:1 |
Values
| HEX | #685AB2 |
| RGB | rgb(104, 90, 178) |
| HSL | hsl(250, 36%, 53%) |
| OKLCH | oklch(52.4% 0.135 288.2) |
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 #685AB2 | 5.68:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #685AB2 | 3.69:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #685AB2 text on white | 5.68:1 | AA | Lc 78.3 | Fine for body text |
| #685AB2 text on black | 3.69:1 | AA large text | Lc -23.5 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D7D6EF
oklch(88.5% 0.034 287.5)
-
Step 300
300
#BEBBE6
oklch(80.9% 0.06 288.2)
-
Step 400
400
#9D97DA
oklch(70.7% 0.097 287.7)
-
Step 500
500
#877CD0
oklch(63.2% 0.124 288.3)
-
Step 600
600 (this color)
#685AB2
oklch(52.4% 0.135 288.2)
-
Step 700
700
#5F52A3
oklch(49.1% 0.126 288.2)
-
Step 800
800
#4D4484
oklch(42.8% 0.103 287.7)
-
Step 900
900
#40396A
oklch(37.6% 0.082 288.4)
-
Step 950
950
#25223E
oklch(27% 0.051 287.4)
#685AB2 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) | #3669B5 | 0.069 |
| Deuteranopia (no green cones) | #3664B0 | 0.066 |
| Tritanopia (no blue cones) | #536C7D | 0.113 |
| Achromatopsia (no color) | #676767 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685AB2
#685AB2
oklch(52.4% 0.135 288.2)
- #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 #685AB2, closest first.
No curated palette has a color within ΔE 0.04 of #685AB2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.031
- Slate Blue #6A5ACD ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.048
- French Blue #436BAD ΔE 0.064
- Deep Lavender #8D5EB7 ΔE 0.064
- Bluey Purple #6241C7 ΔE 0.070
- Dusky Blue #475F94 ΔE 0.071
Use #685AB2 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.