#312154
Closest named color: Space Cadet (#2B2D42). oklch(29.6% 0.089 294.8), rgb(49, 33, 84).
Aa
White text reads best on this color (14.22:1).
About this color
#312154 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.089 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.054 away. White text reads best on it, at 14.22:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.47:1 |
| White text | 14.22:1 |
Values
| HEX | #312154 |
| RGB | rgb(49, 33, 84) |
| HSL | hsl(259, 44%, 23%) |
| OKLCH | oklch(29.6% 0.089 294.8) |
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 #312154 | 14.22:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #312154 | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #312154 text on white | 14.22:1 | AAA | Lc 100.7 | Preferred for body text |
| #312154 text on black | 1.47:1 | 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE6FD
oklch(93.6% 0.031 295.8)
-
Step 200
200
#DBD2FD
oklch(88.5% 0.059 294.8)
-
Step 300
300
#C5B3FE
oklch(80.9% 0.106 294.9)
-
Step 400
400
#A988FD
oklch(70.7% 0.168 294.7)
-
Step 500
500
#9664FB
oklch(63.1% 0.215 294.7)
-
Step 600
600
#8243EA
oklch(55.5% 0.235 294.8)
-
Step 700
700
#6F33CC
oklch(49.2% 0.218 294.9)
-
Step 800
800
#5A2CA5
oklch(42.7% 0.181 294.9)
-
Step 900
900
#492A83
oklch(37.7% 0.142 294.6)
-
Step 950
950 (this color)
#312154
oklch(29.6% 0.089 294.8)
#312154 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) | #082B56 | 0.059 |
| Deuteranopia (no green cones) | #0D2A53 | 0.055 |
| Tritanopia (no blue cones) | #282C37 | 0.071 |
| Achromatopsia (no color) | #2B2B2B | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312154
#312154
oklch(29.6% 0.089 294.8)
- #2C3000
#2C3000
oklch(29.5% 0.067 114.7)
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 #312154, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.063
- Oxford Blue #1B263B ΔE 0.064
- Marine #042E60 ΔE 0.064
- Dark Indigo #1F0954 ΔE 0.068
- Dark Purple #35063E ΔE 0.069
- Gunmetal #293241 ΔE 0.069
- Midnight Blue #191970 ΔE 0.070
Use #312154 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.