#40273D
Closest named color: Space Cadet (#2B2D42). oklch(31.3% 0.051 331), rgb(64, 39, 61).
Aa
White text reads best on this color (13.32:1).
About this color
#40273D is a dark, muted purple. In OKLCH its lightness is 31%, its chroma 0.051 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.041 away. White text reads best on it, at 13.32:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | muted (0.051) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.57:1 |
| White text | 13.32:1 |
Values
| HEX | #40273D |
| RGB | rgb(64, 39, 61) |
| HSL | hsl(307, 24%, 20%) |
| OKLCH | oklch(31.3% 0.051 331) |
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 #40273D | 13.32:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #40273D | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #40273D text on white | 13.32:1 | AAA | Lc 99.6 | Preferred for body text |
| #40273D text on black | 1.57:1 | 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
#F9F3F8
oklch(97% 0.009 330.9)
-
Step 100
100
#F1E6EF
oklch(93.6% 0.017 331.6)
-
Step 200
200
#E7D1E4
oklch(88.4% 0.035 330.3)
-
Step 300
300
#D8B3D3
oklch(80.9% 0.06 330.6)
-
Step 400
400
#C48ABD
oklch(70.7% 0.098 330.8)
-
Step 500
500
#B46CAC
oklch(63.2% 0.124 331)
-
Step 600
600
#9F5297
oklch(55.6% 0.135 331.2)
-
Step 700
700
#884281
oklch(49.1% 0.126 331.2)
-
Step 800
800
#6E3769
oklch(42.7% 0.104 330.7)
-
Step 900
900
#5A3055
oklch(37.7% 0.081 331.5)
-
Step 950
950 (this color)
#40273D
oklch(31.3% 0.051 331)
#40273D 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) | #262D3E | 0.050 |
| Deuteranopia (no green cones) | #2C313C | 0.047 |
| Tritanopia (no blue cones) | #42292F | 0.028 |
| Achromatopsia (no color) | #2F2F2F | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40273D
#40273D
oklch(31.3% 0.051 331)
- #1C3823
#1C3823
oklch(31.2% 0.051 150.6)
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 #40273D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.041
- Gunmetal #293241 ΔE 0.050
- Onyx #343A40 ΔE 0.061
- Oxford Blue #1B263B ΔE 0.069
- Jet #212529 ΔE 0.072
- Prussian Blue #1D3557 ΔE 0.074
- Dark #1B2431 ΔE 0.075
- Dark Blue Grey #1F3B4D ΔE 0.076
Use #40273D 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.