#685ABA
Closest named color: Iris (#6258C4). oklch(52.9% 0.146 287), rgb(104, 90, 186).
Aa
White text reads best on this color (5.58:1).
About this color
#685ABA is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.146 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.020 away. White text reads best on it, at 5.58:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.76:1 |
| White text | 5.58:1 |
Values
| HEX | #685ABA |
| RGB | rgb(104, 90, 186) |
| HSL | hsl(249, 41%, 54%) |
| OKLCH | oklch(52.9% 0.146 287) |
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 #685ABA | 5.58:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #685ABA | 3.76:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #685ABA text on white | 5.58:1 | AA | Lc 77.7 | Fine for body text |
| #685ABA text on black | 3.76:1 | AA large text | Lc -24.1 | 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
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D7D6F1
oklch(88.5% 0.037 287.3)
-
Step 300
300
#BDBBEA
oklch(81% 0.066 286.8)
-
Step 400
400
#9C96DF
oklch(70.6% 0.106 287.1)
-
Step 500
500
#857BD6
oklch(63.2% 0.134 286.9)
-
Step 600
600 (this color)
#685ABA
oklch(52.9% 0.146 287)
-
Step 700
700
#5E51A8
oklch(49.2% 0.134 287.2)
-
Step 800
800
#4C4388
oklch(42.7% 0.111 286.7)
-
Step 900
900
#3F396D
oklch(37.7% 0.087 286.7)
-
Step 950
950
#252240
oklch(27.1% 0.055 286.7)
#685ABA 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) | #2F6ABD | 0.074 |
| Deuteranopia (no green cones) | #2E65B8 | 0.072 |
| Tritanopia (no blue cones) | #4F6E81 | 0.122 |
| Achromatopsia (no color) | #686868 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685ABA
#685ABA
oklch(52.9% 0.146 287)
- #736F00
#736F00
oklch(52.8% 0.113 107.2)
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 #685ABA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.020
- Slate Blue #6A5ACD ΔE 0.030
- Light Indigo #6D5ACF ΔE 0.034
- Dark Periwinkle #665FD1 ΔE 0.036
- Bluey Purple #6241C7 ΔE 0.063
- Deep Lavender #8D5EB7 ΔE 0.064
- Warm Blue #4B57DB ΔE 0.067
- French Blue #436BAD ΔE 0.068
Use #685ABA 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.