#31283F
Closest named color: Space Cadet (#2B2D42). oklch(29.7% 0.042 301.8), rgb(49, 40, 63).
Aa
White text reads best on this color (13.94:1).
About this color
#31283F is a dark, muted purple. In OKLCH its lightness is 30%, its chroma 0.042 and its hue 302°. 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 13.94:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | muted (0.042) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.50:1 |
| White text | 13.94:1 |
Values
| HEX | #31283F |
| RGB | rgb(49, 40, 63) |
| HSL | hsl(263, 22%, 20%) |
| OKLCH | oklch(29.7% 0.042 301.8) |
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 #31283F | 13.94:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #31283F | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #31283F text on white | 13.94:1 | AAA | Lc 100.6 | Preferred for body text |
| #31283F 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
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DCD5E9
oklch(88.5% 0.028 301.7)
-
Step 300
300
#C6BADC
oklch(81% 0.049 301.4)
-
Step 400
400
#AA95CB
oklch(70.8% 0.081 302.2)
-
Step 500
500
#957ABD
oklch(63.1% 0.102 302.1)
-
Step 600
600
#8062AA
oklch(55.6% 0.113 302.1)
-
Step 700
700
#6C5192
oklch(49.2% 0.105 301.8)
-
Step 800
800
#584376
oklch(42.8% 0.085 301.9)
-
Step 900
900
#48395F
oklch(37.8% 0.066 301.5)
-
Step 950
950 (this color)
#31283F
oklch(29.7% 0.042 301.8)
#31283F 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) | #232C40 | 0.026 |
| Deuteranopia (no green cones) | #252C3E | 0.024 |
| Tritanopia (no blue cones) | #2F2C30 | 0.035 |
| Achromatopsia (no color) | #2C2C2C | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31283F
#31283F
oklch(29.7% 0.042 301.8)
- #2A3118
#2A3118
oklch(29.9% 0.043 121.8)
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 #31283F, 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 0.033
- Oxford Blue #1B263B ΔE 0.040
- Dark #1B2431 ΔE 0.049
- Jet #212529 ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.057
- Onyx #343A40 ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.063
Use #31283F 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.