#403169
Closest named color: Prussian Blue (#1D3557). oklch(35.9% 0.094 293.4), rgb(64, 49, 105).
Aa
White text reads best on this color (11.28:1).
About this color
#403169 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.094 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.064 away. White text reads best on it, at 11.28:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.86:1 |
| White text | 11.28:1 |
Values
| HEX | #403169 |
| RGB | rgb(64, 49, 105) |
| HSL | hsl(256, 36%, 30%) |
| OKLCH | oklch(35.9% 0.094 293.4) |
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 #403169 | 11.28:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #403169 | 1.86:1 | Fails | Lc 8.0 | Not readable |
| #403169 text on white | 11.28:1 | AAA | Lc 95.9 | Preferred for body text |
| #403169 text on black | 1.86:1 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#DAD5F1
oklch(88.6% 0.038 293.8)
-
Step 300
300
#C2B9EB
oklch(81% 0.07 293)
-
Step 400
400
#A493E1
oklch(70.8% 0.113 293.3)
-
Step 500
500
#8E76D8
oklch(63.1% 0.144 293.1)
-
Step 600
600
#795CC5
oklch(55.5% 0.157 293.3)
-
Step 700
700
#664BAA
oklch(49% 0.146 293.4)
-
Step 800
800
#533E8A
oklch(42.6% 0.122 293.3)
-
Step 900
900 (this color)
#403169
oklch(35.9% 0.094 293.4)
-
Step 950
950
#282041
oklch(27% 0.06 293.1)
#403169 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) | #1B3B6B | 0.056 |
| Deuteranopia (no green cones) | #1E3A68 | 0.053 |
| Tritanopia (no blue cones) | #363C48 | 0.076 |
| Achromatopsia (no color) | #3B3B3B | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403169
#403169
oklch(35.9% 0.094 293.4)
- #3D4100
#3D4100
oklch(35.9% 0.081 113.7)
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 #403169, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.065
- Marine Blue #01386A ΔE 0.072
- Twilight Blue #0A437A ΔE 0.075
- Dark Grey Blue #29465B ΔE 0.078
- Space Cadet #2B2D42 ΔE 0.079
- Dark Blue Grey #1F3B4D ΔE 0.080
- Marine #042E60 ΔE 0.081
Use #403169 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.