#312840
Closest named color: Space Cadet (#2B2D42). oklch(29.8% 0.044 301), rgb(49, 40, 64).
Aa
White text reads best on this color (13.92:1).
About this color
#312840 is a dark, muted purple. In OKLCH its lightness is 30%, its chroma 0.044 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.018 away. White text reads best on it, at 13.92:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.50:1 |
| White text | 13.92:1 |
Values
| HEX | #312840 |
| RGB | rgb(49, 40, 64) |
| HSL | hsl(263, 23%, 20%) |
| OKLCH | oklch(29.8% 0.044 301) |
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 #312840 | 13.92:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #312840 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #312840 text on white | 13.92:1 | AAA | Lc 100.5 | Preferred for body text |
| #312840 text on black | 1.50:1 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DCD5EA
oklch(88.5% 0.029 301)
-
Step 300
300
#C6B9DE
oklch(80.8% 0.053 301.2)
-
Step 400
400
#A995CD
oklch(70.7% 0.083 300.7)
-
Step 500
500
#947AC0
oklch(63.1% 0.106 300.5)
-
Step 600
600
#7F62AC
oklch(55.6% 0.115 300.8)
-
Step 700
700
#6B5094
oklch(49% 0.109 300.8)
-
Step 800
800
#584278
oklch(42.7% 0.09 301.5)
-
Step 900
900
#483861
oklch(37.7% 0.071 301.1)
-
Step 950
950 (this color)
#312840
oklch(29.8% 0.044 301)
#312840 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) | #232C41 | 0.026 |
| Deuteranopia (no green cones) | #242C3F | 0.025 |
| Tritanopia (no blue cones) | #2E2C31 | 0.035 |
| Achromatopsia (no color) | #2C2C2C | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312840
#312840
oklch(29.8% 0.044 301)
- #2A3117
#2A3117
oklch(29.9% 0.044 121.5)
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 #312840, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.018
- Gunmetal #293241 ΔE 0.034
- Oxford Blue #1B263B ΔE 0.040
- Dark #1B2431 ΔE 0.050
- Jet #212529 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.056
- Onyx #343A40 ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.062
Use #312840 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.