#31233B
Closest named color: Space Cadet (#2B2D42). oklch(28.4% 0.047 310.4), rgb(49, 35, 59).
Aa
White text reads best on this color (14.64:1).
About this color
#31233B is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.047 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.032 away. White text reads best on it, at 14.64:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.43:1 |
| White text | 14.64:1 |
Values
| HEX | #31233B |
| RGB | rgb(49, 35, 59) |
| HSL | hsl(275, 26%, 18%) |
| OKLCH | oklch(28.4% 0.047 310.4) |
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 #31233B | 14.64:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #31233B | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #31233B text on white | 14.64:1 | AAA | Lc 101.4 | Preferred for body text |
| #31233B text on black | 1.43:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#DFD4E9
oklch(88.5% 0.031 309.1)
-
Step 300
300
#CCB7DC
oklch(80.9% 0.056 310.5)
-
Step 400
400
#B291CA
oklch(70.7% 0.089 310.5)
-
Step 500
500
#9F75BC
oklch(63.1% 0.113 310.6)
-
Step 600
600
#8A5DA8
oklch(55.7% 0.122 310.6)
-
Step 700
700
#754C90
oklch(49.1% 0.114 310.6)
-
Step 800
800
#5F3F75
oklch(42.8% 0.094 310.3)
-
Step 900
900
#4E365F
oklch(37.8% 0.074 310.2)
-
Step 950
950 (this color)
#31233B
oklch(28.4% 0.047 310.4)
#31233B 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) | #1F283C | 0.034 |
| Deuteranopia (no green cones) | #22293A | 0.032 |
| Tritanopia (no blue cones) | #30262C | 0.033 |
| Achromatopsia (no color) | #292929 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31233B
#31233B
oklch(28.4% 0.047 310.4)
- #222E15
#222E15
oklch(28.3% 0.046 129.9)
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 #31233B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.032
- Oxford Blue #1B263B ΔE 0.039
- Dark #1B2431 ΔE 0.045
- Gunmetal #293241 ΔE 0.048
- Jet #212529 ΔE 0.048
- Eggplant #380835 ΔE 0.066
- Aubergine #3D0734 ΔE 0.067
- Prussian Blue #1D3557 ΔE 0.070
Use #31233B 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.