#684EA6
Closest named color: Iris (#6258C4). oklch(49.4% 0.136 294.5), rgb(104, 78, 166).
Aa
White text reads best on this color (6.50:1).
About this color
#684EA6 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.136 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.051 away. White text reads best on it, at 6.50:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Iris (#6258C4) |
| Black text | 3.22:1 |
| White text | 6.50:1 |
Values
| HEX | #684EA6 |
| RGB | rgb(104, 78, 166) |
| HSL | hsl(258, 36%, 48%) |
| OKLCH | oklch(49.4% 0.136 294.5) |
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 #684EA6 | 6.50:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #684EA6 | 3.22:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #684EA6 text on white | 6.50:1 | AA | Lc 82.0 | Fine for body text |
| #684EA6 text on black | 3.22:1 | AA large text | Lc -19.9 | 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
#C3B9E8
oklch(81% 0.066 294.6)
-
Step 400
400
#A593DC
oklch(70.7% 0.106 294.9)
-
Step 500
500
#8F77D2
oklch(63% 0.135 294.3)
-
Step 600
600
#7A5EBF
oklch(55.6% 0.147 294.5)
-
Step 700
700 (this color)
#684EA6
oklch(49.4% 0.136 294.5)
-
Step 800
800
#544086
oklch(42.8% 0.113 294.3)
-
Step 900
900
#45376B
oklch(37.8% 0.087 294.2)
-
Step 950
950
#28203F
oklch(26.9% 0.057 294.1)
#684EA6 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) | #2A5FA9 | 0.085 |
| Deuteranopia (no green cones) | #305CA4 | 0.080 |
| Tritanopia (no blue cones) | #596072 | 0.110 |
| Achromatopsia (no color) | #5E5E5E | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684EA6
#684EA6
oklch(49.4% 0.136 294.5)
- #616800
#616800
oklch(49.4% 0.111 114.3)
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 #684EA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.051
- Twilight #4E518B ΔE 0.062
- Bluey Purple #6241C7 ΔE 0.063
- Rebecca Purple #663399 ΔE 0.063
- Slate Blue #6A5ACD ΔE 0.065
- Light Indigo #6D5ACF ΔE 0.068
- Blueberry #464196 ΔE 0.072
- Dusky Blue #475F94 ΔE 0.073
Use #684EA6 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.