#684CCF
Closest named color: Bluey Purple (#6241C7). oklch(52% 0.193 287.6), rgb(104, 76, 207).
Aa
White text reads best on this color (5.96:1).
About this color
#684CCF is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.193 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.029 away. White text reads best on it, at 5.96:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.193) |
| Temperature | cool |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.52:1 |
| White text | 5.96:1 |
Values
| HEX | #684CCF |
| RGB | rgb(104, 76, 207) |
| HSL | hsl(253, 58%, 55%) |
| OKLCH | oklch(52% 0.193 287.6) |
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 #684CCF | 5.96:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #684CCF | 3.52:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #684CCF text on white | 5.96:1 | AA | Lc 79.3 | Fine for body text |
| #684CCF text on black | 3.52:1 | AA large text | Lc -22.5 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FC
oklch(93.5% 0.028 288)
-
Step 200
200
#D6D5FA
oklch(88.6% 0.051 286.6)
-
Step 300
300
#BDB8FA
oklch(81% 0.093 287.6)
-
Step 400
400
#9C90F8
oklch(70.8% 0.149 287.2)
-
Step 500
500
#8770F4
oklch(63.2% 0.19 287.7)
-
Step 600
600
#7253E3
oklch(55.5% 0.208 287.5)
-
Step 700
700 (this color)
#684CCF
oklch(52% 0.193 287.6)
-
Step 800
800
#4E389F
oklch(42.7% 0.159 287.5)
-
Step 900
900
#40327E
oklch(37.7% 0.123 287.4)
-
Step 950
950
#251E4A
oklch(27% 0.079 287.2)
#684CCF 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) | #0067D3 | 0.102 |
| Deuteranopia (no green cones) | #0060CC | 0.099 |
| Tritanopia (no blue cones) | #436C86 | 0.160 |
| Achromatopsia (no color) | #646464 | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684CCF
#684CCF
oklch(52% 0.193 287.6)
- #706D00
#706D00
oklch(52% 0.112 107.8)
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 #684CCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.029
- Slate Blue #6A5ACD ΔE 0.032
- Iris #6258C4 ΔE 0.033
- Light Indigo #6D5ACF ΔE 0.033
- Dark Periwinkle #665FD1 ΔE 0.042
- Warm Blue #4B57DB ΔE 0.049
- Blurple #5539CC ΔE 0.053
- Blue With A Hint Of Purple #533CC6 ΔE 0.053
Use #684CCF 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.