#31203B
Closest named color: Space Cadet (#2B2D42). oklch(27.7% 0.053 312.2), rgb(49, 32, 59).
Aa
White text reads best on this color (14.99:1).
About this color
#31203B is a dark, muted purple. In OKLCH its lightness is 28%, its chroma 0.053 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.040 away. White text reads best on it, at 14.99:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.40:1 |
| White text | 14.99:1 |
Values
| HEX | #31203B |
| RGB | rgb(49, 32, 59) |
| HSL | hsl(278, 30%, 18%) |
| OKLCH | oklch(27.7% 0.053 312.2) |
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 #31203B | 14.99:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #31203B | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #31203B text on white | 14.99:1 | AAA | Lc 101.8 | Preferred for body text |
| #31203B text on black | 1.40:1 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE7F3
oklch(93.7% 0.018 311.6)
-
Step 200
200
#E1D3EA
oklch(88.5% 0.035 312.4)
-
Step 300
300
#CFB5DF
oklch(80.9% 0.065 312.5)
-
Step 400
400
#B68ECE
oklch(70.7% 0.101 312.4)
-
Step 500
500
#A471C1
oklch(63.2% 0.128 312.5)
-
Step 600
600
#8F58AE
oklch(55.7% 0.14 312.2)
-
Step 700
700
#794795
oklch(49% 0.13 312.1)
-
Step 800
800
#633B79
oklch(42.8% 0.108 312.4)
-
Step 900
900
#513361
oklch(37.7% 0.084 313)
-
Step 950
950 (this color)
#31203B
oklch(27.7% 0.053 312.2)
#31203B 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) | #1B263C | 0.042 |
| Deuteranopia (no green cones) | #1F273A | 0.038 |
| Tritanopia (no blue cones) | #30242A | 0.038 |
| Achromatopsia (no color) | #272727 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31203B
#31203B
oklch(27.7% 0.053 312.2)
- #1E2E10
#1E2E10
oklch(27.9% 0.055 132.3)
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 #31203B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.042
- Dark #1B2431 ΔE 0.048
- Jet #212529 ΔE 0.052
- Gunmetal #293241 ΔE 0.057
- Eggplant #380835 ΔE 0.057
- Aubergine #3D0734 ΔE 0.059
- Dark Purple #35063E ΔE 0.062
Use #31203B 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.