#40284D
Closest named color: Space Cadet (#2B2D42). oklch(32.3% 0.07 312.9), rgb(64, 40, 77).
Aa
White text reads best on this color (12.89:1).
About this color
#40284D is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.070 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.047 away. White text reads best on it, at 12.89:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.62:1 |
| White text | 12.89:1 |
Values
| HEX | #40284D |
| RGB | rgb(64, 40, 77) |
| HSL | hsl(279, 32%, 23%) |
| OKLCH | oklch(32.3% 0.07 312.9) |
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 #40284D | 12.89:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #40284D | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #40284D text on white | 12.89:1 | AAA | Lc 98.9 | Preferred for body text |
| #40284D text on black | 1.62:1 | 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 950.
-
Step 50
50
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE6F6
oklch(93.7% 0.023 310.7)
-
Step 200
200
#E4D1EF
oklch(88.5% 0.045 313.3)
-
Step 300
300
#D3B1E7
oklch(80.8% 0.083 312.8)
-
Step 400
400
#BD87DB
oklch(70.7% 0.132 312.8)
-
Step 500
500
#AC66D1
oklch(63.1% 0.168 312.7)
-
Step 600
600
#9849BE
oklch(55.6% 0.185 313.1)
-
Step 700
700
#813AA4
oklch(49.1% 0.171 312.7)
-
Step 800
800
#693185
oklch(42.7% 0.141 312.7)
-
Step 900
900
#562C6B
oklch(37.8% 0.112 313.1)
-
Step 950
950 (this color)
#40284D
oklch(32.3% 0.07 312.9)
#40284D 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) | #21304E | 0.056 |
| Deuteranopia (no green cones) | #27324C | 0.051 |
| Tritanopia (no blue cones) | #3F2D36 | 0.048 |
| Achromatopsia (no color) | #323232 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40284D
#40284D
oklch(32.3% 0.07 312.9)
- #253B12
#253B12
oklch(32.3% 0.07 132.8)
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 #40284D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.047
- Gunmetal #293241 ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.064
- Deep Violet #490648 ΔE 0.069
- Onyx #343A40 ΔE 0.069
- Grape Purple #5D1451 ΔE 0.070
- Plum Purple #4E0550 ΔE 0.071
- Eggplant Purple #430541 ΔE 0.074
Use #40284D 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.