#685AB1
Closest named color: Iris (#6258C4). oklch(52.3% 0.133 288.3), rgb(104, 90, 177).
Aa
White text reads best on this color (5.69:1).
About this color
#685AB1 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 52%, its chroma 0.133 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.032 away. White text reads best on it, at 5.69:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.68:1 |
| White text | 5.69:1 |
Values
| HEX | #685AB1 |
| RGB | rgb(104, 90, 177) |
| HSL | hsl(250, 36%, 52%) |
| OKLCH | oklch(52.3% 0.133 288.3) |
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 #685AB1 | 5.69:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #685AB1 | 3.68:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #685AB1 text on white | 5.69:1 | AA | Lc 78.3 | Fine for body text |
| #685AB1 text on black | 3.68:1 | 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 700.
-
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
#D7D6F0
oklch(88.5% 0.036 287.4)
-
Step 300
300
#BEBBE9
oklch(81% 0.064 287.9)
-
Step 400
400
#9E96DD
oklch(70.7% 0.103 288.6)
-
Step 500
500
#877BD4
oklch(63.2% 0.131 288.2)
-
Step 600
600
#7162C1
oklch(55.6% 0.143 288.1)
-
Step 700
700 (this color)
#685AB1
oklch(52.3% 0.133 288.3)
-
Step 800
800
#4E4287
oklch(42.7% 0.111 288.8)
-
Step 900
900
#40396C
oklch(37.7% 0.085 287.9)
-
Step 950
950
#25223F
oklch(27.1% 0.053 287)
#685AB1 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) | #3769B4 | 0.068 |
| Deuteranopia (no green cones) | #3764AF | 0.066 |
| Tritanopia (no blue cones) | #536C7D | 0.112 |
| Achromatopsia (no color) | #676767 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685AB1
#685AB1
oklch(52.3% 0.133 288.3)
- #706E00
#706E00
oklch(52.3% 0.113 108.5)
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 #685AB1, closest first.
No curated palette has a color within ΔE 0.04 of #685AB1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.032
- Slate Blue #6A5ACD ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.048
- Dark Periwinkle #665FD1 ΔE 0.050
- French Blue #436BAD ΔE 0.064
- Deep Lavender #8D5EB7 ΔE 0.065
- Dusky Blue #475F94 ΔE 0.070
- Bluey Purple #6241C7 ΔE 0.071
Use #685AB1 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.