#403151
Closest named color: Space Cadet (#2B2D42). oklch(34.4% 0.058 305.1), rgb(64, 49, 81).
Aa
White text reads best on this color (11.82:1).
About this color
#403151 is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.058 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.049 away. White text reads best on it, at 11.82:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.77:1 |
| White text | 11.82:1 |
Values
| HEX | #403151 |
| RGB | rgb(64, 49, 81) |
| HSL | hsl(268, 25%, 25%) |
| OKLCH | oklch(34.4% 0.058 305.1) |
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 #403151 | 11.82:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #403151 | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #403151 text on white | 11.82:1 | AAA | Lc 97.1 | Preferred for body text |
| #403151 text on black | 1.77:1 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE8F1
oklch(93.7% 0.013 306)
-
Step 200
200
#DDD5E6
oklch(88.4% 0.025 306.9)
-
Step 300
300
#C7BAD8
oklch(80.9% 0.044 305)
-
Step 400
400
#AA96C4
oklch(70.7% 0.069 304.5)
-
Step 500
500
#967CB5
oklch(63.2% 0.088 304.9)
-
Step 600
600
#8064A0
oklch(55.5% 0.096 304.9)
-
Step 700
700
#6D5389
oklch(49.2% 0.089 305.5)
-
Step 800
800
#58446F
oklch(42.6% 0.073 304.9)
-
Step 900
900 (this color)
#403151
oklch(34.4% 0.058 305.1)
-
Step 950
950
#2B2235
oklch(27.1% 0.037 305.8)
#403151 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) | #2A3752 | 0.039 |
| Deuteranopia (no green cones) | #2D3850 | 0.037 |
| Tritanopia (no blue cones) | #3D363D | 0.044 |
| Achromatopsia (no color) | #373737 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403151
#403151
oklch(34.4% 0.058 305.1)
- #323E1B
#323E1B
oklch(34.4% 0.058 124.9)
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 #403151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.049
- Gunmetal #293241 ΔE 0.051
- Onyx #343A40 ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.064
- Dark Grey Blue #29465B ΔE 0.068
- Charcoal #264653 ΔE 0.072
Use #403151 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.