#403164
Closest named color: Prussian Blue (#1D3557). oklch(35.6% 0.087 295.2), rgb(64, 49, 100).
Aa
White text reads best on this color (11.40:1).
About this color
#403164 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.087 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.060 away. White text reads best on it, at 11.40:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.84:1 |
| White text | 11.40:1 |
Values
| HEX | #403164 |
| RGB | rgb(64, 49, 100) |
| HSL | hsl(258, 34%, 29%) |
| OKLCH | oklch(35.6% 0.087 295.2) |
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 #403164 | 11.40:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #403164 | 1.84:1 | Fails | Lc 7.7 | Not readable |
| #403164 text on white | 11.40:1 | AAA | Lc 96.2 | Preferred for body text |
| #403164 text on black | 1.84:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#DAD5EF
oklch(88.5% 0.036 294.5)
-
Step 300
300
#C3B9E7
oklch(80.9% 0.065 294.9)
-
Step 400
400
#A593DB
oklch(70.6% 0.105 295.1)
-
Step 500
500
#9077D1
oklch(63.1% 0.134 295.1)
-
Step 600
600
#7B5EBE
oklch(55.6% 0.145 295.2)
-
Step 700
700
#684DA4
oklch(49.1% 0.135 295.3)
-
Step 800
800
#554085
oklch(42.8% 0.112 295.3)
-
Step 900
900 (this color)
#403164
oklch(35.6% 0.087 295.2)
-
Step 950
950
#29203E
oklch(27% 0.055 296.3)
#403164 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) | #1F3A66 | 0.052 |
| Deuteranopia (no green cones) | #223963 | 0.049 |
| Tritanopia (no blue cones) | #383B45 | 0.071 |
| Achromatopsia (no color) | #3A3A3A | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403164
#403164
oklch(35.6% 0.087 295.2)
- #3B4000
#3B4000
oklch(35.5% 0.08 114.7)
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 #403164, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.072
- Marine Blue #01386A ΔE 0.072
- Space Cadet #2B2D42 ΔE 0.072
- Dark Grey Blue #29465B ΔE 0.074
- Dark Blue Grey #1F3B4D ΔE 0.075
- Gunmetal #293241 ΔE 0.076
- Twilight Blue #0A437A ΔE 0.078
Use #403164 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.