#333455
Closest named color: Prussian Blue (#1D3557). oklch(34% 0.058 281.6), rgb(51, 52, 85).
Aa
White text reads best on this color (11.91:1).
About this color
#333455 is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.058 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.031 away. White text reads best on it, at 11.91:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.76:1 |
| White text | 11.91:1 |
Values
| HEX | #333455 |
| RGB | rgb(51, 52, 85) |
| HSL | hsl(238, 25%, 27%) |
| OKLCH | oklch(34% 0.058 281.6) |
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 #333455 | 11.91:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #333455 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #333455 text on white | 11.91:1 | AAA | Lc 97.3 | Preferred for body text |
| #333455 text on black | 1.76:1 | 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
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D6D8E9
oklch(88.6% 0.023 280.6)
-
Step 300
300
#BBBEDD
oklch(80.9% 0.044 281)
-
Step 400
400
#999CCB
oklch(70.7% 0.069 281.6)
-
Step 500
500
#8083BE
oklch(63.1% 0.088 281.3)
-
Step 600
600
#6A6CAA
oklch(55.6% 0.096 281.4)
-
Step 700
700
#585A92
oklch(49.1% 0.089 281)
-
Step 800
800
#484A76
oklch(42.7% 0.073 280.9)
-
Step 900
900 (this color)
#333455
oklch(34% 0.058 281.6)
-
Step 950
950
#232438
oklch(26.9% 0.037 281.4)
#333455 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) | #293856 | 0.018 |
| Deuteranopia (no green cones) | #283654 | 0.018 |
| Tritanopia (no blue cones) | #2A3A40 | 0.050 |
| Achromatopsia (no color) | #373737 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #333455
#333455
oklch(34% 0.058 281.6)
- #3E3911
#3E3911
oklch(34% 0.058 102.2)
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 #333455, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.031
- Dark Blue Grey #1F3B4D ΔE 0.040
- Gunmetal #293241 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.040
- Onyx #343A40 ΔE 0.047
- Midnight Green #073B4C ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.056
- Marine Blue #01386A ΔE 0.059
Use #333455 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.