#403A61
Closest named color: Dark Grey Blue (#29465B). oklch(37.3% 0.066 289.9), rgb(64, 58, 97).
Aa
White text reads best on this color (10.52:1).
About this color
#403A61 is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.066 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.051 away. White text reads best on it, at 10.52:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.99:1 |
| White text | 10.52:1 |
Values
| HEX | #403A61 |
| RGB | rgb(64, 58, 97) |
| HSL | hsl(249, 25%, 30%) |
| OKLCH | oklch(37.3% 0.066 289.9) |
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 #403A61 | 10.52:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #403A61 | 1.99:1 | Fails | Lc 9.6 | Not readable |
| #403A61 text on white | 10.52:1 | AAA | Lc 94.4 | Preferred for body text |
| #403A61 text on black | 1.99:1 | Fails | Lc -8.2 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D6EB
oklch(88.4% 0.029 290.2)
-
Step 300
300
#BFBCDF
oklch(80.9% 0.049 289.2)
-
Step 400
400
#9F99CF
oklch(70.8% 0.078 289.3)
-
Step 500
500
#887FC3
oklch(63.2% 0.101 289.2)
-
Step 600
600
#7367AF
oklch(55.6% 0.11 290)
-
Step 700
700
#605596
oklch(49% 0.102 289.9)
-
Step 800
800
#4F467A
oklch(42.7% 0.085 290.3)
-
Step 900
900 (this color)
#403A61
oklch(37.3% 0.066 289.9)
-
Step 950
950
#26233A
oklch(27.1% 0.042 289.2)
#403A61 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) | #2E4063 | 0.031 |
| Deuteranopia (no green cones) | #2F3E60 | 0.028 |
| Tritanopia (no blue cones) | #384149 | 0.055 |
| Achromatopsia (no color) | #3F3F3F | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403A61
#403A61
oklch(37.3% 0.066 289.9)
- #434315
#434315
oklch(37.2% 0.066 109.2)
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 #403A61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.059
- Charcoal #264653 ΔE 0.061
- Dark Blue Grey #1F3B4D ΔE 0.062
- Onyx #343A40 ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.065
- Twilight Blue #0A437A ΔE 0.069
- Gunmetal #293241 ΔE 0.072
Use #403A61 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.