#684CC5
Closest named color: Bluey Purple (#6241C7). oklch(51.3% 0.18 289.1), rgb(104, 76, 197).
Aa
White text reads best on this color (6.12:1).
About this color
#684CC5 is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.180 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.027 away. White text reads best on it, at 6.12:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.42:1 |
| White text | 6.12:1 |
Values
| HEX | #684CC5 |
| RGB | rgb(104, 76, 197) |
| HSL | hsl(254, 51%, 54%) |
| OKLCH | oklch(51.3% 0.18 289.1) |
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 #684CC5 | 6.12:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #684CC5 | 3.42:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #684CC5 text on white | 6.12:1 | AA | Lc 80.1 | Fine for body text |
| #684CC5 text on black | 3.42:1 | AA large text | Lc -21.7 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D7D5F8
oklch(88.6% 0.048 288)
-
Step 300
300
#BEB8F6
oklch(80.9% 0.087 288.7)
-
Step 400
400
#9F90F1
oklch(70.6% 0.139 289.4)
-
Step 500
500
#8971EC
oklch(63% 0.178 289.2)
-
Step 600
600
#7456DB
oklch(55.6% 0.194 288.9)
-
Step 700
700 (this color)
#684CC5
oklch(51.3% 0.18 289.1)
-
Step 800
800
#503A99
oklch(42.7% 0.148 289.2)
-
Step 900
900
#42337A
oklch(37.7% 0.116 289.4)
-
Step 950
950
#261F47
oklch(27% 0.072 288.7)
#684CC5 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) | #0064C9 | 0.102 |
| Deuteranopia (no green cones) | #005FC2 | 0.101 |
| Tritanopia (no blue cones) | #4A6881 | 0.147 |
| Achromatopsia (no color) | #626262 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684CC5
#684CC5
oklch(51.3% 0.18 289.1)
- #6C6B00
#6C6B00
oklch(51.2% 0.111 109.1)
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 #684CC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.027
- Iris #6258C4 ΔE 0.028
- Slate Blue #6A5ACD ΔE 0.034
- Light Indigo #6D5ACF ΔE 0.036
- Dark Periwinkle #665FD1 ΔE 0.046
- Blue With A Hint Of Purple #533CC6 ΔE 0.052
- Blurple #5539CC ΔE 0.054
- Warm Blue #4B57DB ΔE 0.057
Use #684CC5 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.