#40304E
Closest named color: Space Cadet (#2B2D42). oklch(34% 0.055 308.1), rgb(64, 48, 78).
Aa
White text reads best on this color (11.99:1).
About this color
#40304E is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.055 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.045 away. White text reads best on it, at 11.99:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.75:1 |
| White text | 11.99:1 |
Values
| HEX | #40304E |
| RGB | rgb(64, 48, 78) |
| HSL | hsl(272, 24%, 25%) |
| OKLCH | oklch(34% 0.055 308.1) |
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 #40304E | 11.99:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #40304E | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #40304E text on white | 11.99:1 | AAA | Lc 97.4 | Preferred for body text |
| #40304E text on black | 1.75:1 | 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
#F6F4F8
oklch(97% 0.006 308.4)
-
Step 100
100
#ECE8F0
oklch(93.6% 0.011 308.3)
-
Step 200
200
#DDD5E5
oklch(88.4% 0.023 308.2)
-
Step 300
300
#C8BAD6
oklch(80.9% 0.042 307.9)
-
Step 400
400
#AC96C1
oklch(70.7% 0.066 307.9)
-
Step 500
500
#987CB1
oklch(63.2% 0.084 308.2)
-
Step 600
600
#82649D
oklch(55.6% 0.092 307.8)
-
Step 700
700
#6E5386
oklch(49.1% 0.085 307.8)
-
Step 800
800
#5A446D
oklch(42.7% 0.071 308.2)
-
Step 900
900 (this color)
#40304E
oklch(34% 0.055 308.1)
-
Step 950
950
#2B2234
oklch(27% 0.035 307)
#40304E 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) | #2A364F | 0.039 |
| Deuteranopia (no green cones) | #2E374D | 0.036 |
| Tritanopia (no blue cones) | #3E343B | 0.040 |
| Achromatopsia (no color) | #363636 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40304E
#40304E
oklch(34% 0.055 308.1)
- #303D1D
#303D1D
oklch(33.9% 0.054 127.2)
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 #40304E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.045
- Gunmetal #293241 ΔE 0.048
- Onyx #343A40 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.059
- Charcoal Grey #3C4142 ΔE 0.064
- Dark Grey Blue #29465B ΔE 0.071
- Charcoal #264653 ΔE 0.074
Use #40304E 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.