#685FBC
Closest named color: Iris (#6258C4). oklch(53.9% 0.141 285), rgb(104, 95, 188).
Aa
White text reads best on this color (5.31:1).
About this color
#685FBC is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.141 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.025 away. White text reads best on it, at 5.31:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.95:1 |
| White text | 5.31:1 |
Values
| HEX | #685FBC |
| RGB | rgb(104, 95, 188) |
| HSL | hsl(246, 41%, 55%) |
| OKLCH | oklch(53.9% 0.141 285) |
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 #685FBC | 5.31:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #685FBC | 3.95:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #685FBC text on white | 5.31:1 | AA | Lc 76.2 | Fine for body text |
| #685FBC text on black | 3.95:1 | AA large text | Lc -25.5 | 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
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D6D6F0
oklch(88.4% 0.036 285.7)
-
Step 300
300
#BCBCE9
oklch(81% 0.063 284.9)
-
Step 400
400
#9A97DE
oklch(70.6% 0.103 285.4)
-
Step 500
500
#827CD4
oklch(63% 0.13 285.1)
-
Step 600
600 (this color)
#685FBC
oklch(53.9% 0.141 285)
-
Step 700
700
#5B52A7
oklch(49% 0.132 285.3)
-
Step 800
800
#4A4487
oklch(42.7% 0.108 284.9)
-
Step 900
900
#3E3A6C
oklch(37.8% 0.084 285.3)
-
Step 950
950
#24223F
oklch(27% 0.053 285.4)
#685FBC 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) | #376EBF | 0.065 |
| Deuteranopia (no green cones) | #3468BA | 0.065 |
| Tritanopia (no blue cones) | #4D7384 | 0.122 |
| Achromatopsia (no color) | #6B6B6B | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685FBC
#685FBC
oklch(53.9% 0.141 285)
- #797100
#797100
oklch(53.9% 0.114 104.7)
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 #685FBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.025
- Slate Blue #6A5ACD ΔE 0.030
- Dark Periwinkle #665FD1 ΔE 0.033
- Light Indigo #6D5ACF ΔE 0.034
- Deep Lavender #8D5EB7 ΔE 0.061
- French Blue #436BAD ΔE 0.062
- Warm Blue #4B57DB ΔE 0.069
- Bluey Purple #6241C7 ΔE 0.073
Use #685FBC 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.