#333151
Closest named color: Space Cadet (#2B2D42). oklch(33.1% 0.056 285.8), rgb(51, 49, 81).
Aa
White text reads best on this color (12.36:1).
About this color
#333151 is a dark, muted purple. In OKLCH its lightness is 33%, its chroma 0.056 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.032 away. White text reads best on it, at 12.36:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.69:1 |
| White text | 12.36:1 |
Values
| HEX | #333151 |
| RGB | rgb(51, 49, 81) |
| HSL | hsl(244, 25%, 25%) |
| OKLCH | oklch(33.1% 0.056 285.8) |
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 #333151 | 12.36:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #333151 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #333151 text on white | 12.36:1 | AAA | Lc 98.1 | Preferred for body text |
| #333151 text on black | 1.69:1 | 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 900.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F2
oklch(93.7% 0.012 286.2)
-
Step 200
200
#D7D7E8
oklch(88.4% 0.023 285.9)
-
Step 300
300
#BDBDDB
oklch(80.8% 0.042 285.4)
-
Step 400
400
#9C9BC9
oklch(70.7% 0.067 285.6)
-
Step 500
500
#8582BB
oklch(63.1% 0.085 286.1)
-
Step 600
600
#6F6BA7
oklch(55.7% 0.092 286)
-
Step 700
700
#5C5990
oklch(49.1% 0.087 285.2)
-
Step 800
800
#4B4975
oklch(42.7% 0.072 285)
-
Step 900
900 (this color)
#333151
oklch(33.1% 0.056 285.8)
-
Step 950
950
#252437
oklch(27% 0.035 286.2)
#333151 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) | #273552 | 0.021 |
| Deuteranopia (no green cones) | #273450 | 0.020 |
| Tritanopia (no blue cones) | #2B373D | 0.048 |
| Achromatopsia (no color) | #343434 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #333151
#333151
oklch(33.1% 0.056 285.8)
- #393711
#393711
oklch(33% 0.056 106.3)
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 #333151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.033
- Gunmetal #293241 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.043
- Onyx #343A40 ΔE 0.048
- Midnight Green #073B4C ΔE 0.057
- Marine #042E60 ΔE 0.062
- Marine Blue #01386A ΔE 0.064
Use #333151 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.