#684CA7
Closest named color: Iris (#6258C4). oklch(49.1% 0.141 294.9), rgb(104, 76, 167).
Aa
White text reads best on this color (6.60:1).
About this color
#684CA7 is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.141 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.052 away. White text reads best on it, at 6.60:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.18:1 |
| White text | 6.60:1 |
Values
| HEX | #684CA7 |
| RGB | rgb(104, 76, 167) |
| HSL | hsl(258, 37%, 48%) |
| OKLCH | oklch(49.1% 0.141 294.9) |
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 #684CA7 | 6.60:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #684CA7 | 3.18:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #684CA7 text on white | 6.60:1 | AA | Lc 82.4 | Fine for body text |
| #684CA7 text on black | 3.18:1 | AA large text | Lc -19.5 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5F0
oklch(88.5% 0.037 294.1)
-
Step 300
300
#C3B8E9
oklch(80.8% 0.069 295.1)
-
Step 400
400
#A593DE
oklch(70.8% 0.109 294.5)
-
Step 500
500
#9076D4
oklch(63.1% 0.139 294.8)
-
Step 600
600
#7B5DC1
oklch(55.6% 0.151 294.9)
-
Step 700
700 (this color)
#684CA7
oklch(49.1% 0.141 294.9)
-
Step 800
800
#553F87
oklch(42.8% 0.116 295.1)
-
Step 900
900
#46366C
oklch(37.7% 0.091 295.4)
-
Step 950
950
#29203F
oklch(27% 0.057 295.7)
#684CA7 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) | #245EAA | 0.091 |
| Deuteranopia (no green cones) | #2C5BA5 | 0.085 |
| Tritanopia (no blue cones) | #595F72 | 0.113 |
| Achromatopsia (no color) | #5D5D5D | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684CA7
#684CA7
oklch(49.1% 0.141 294.9)
- #5F6700
#5F6700
oklch(49% 0.111 115)
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 #684CA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.052
- Bluey Purple #6241C7 ΔE 0.059
- Rebecca Purple #663399 ΔE 0.059
- Twilight #4E518B ΔE 0.064
- Slate Blue #6A5ACD ΔE 0.065
- Light Indigo #6D5ACF ΔE 0.069
- Blueberry #464196 ΔE 0.071
- Blue With A Hint Of Purple #533CC6 ΔE 0.074
Use #684CA7 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.