#333353
Closest named color: Prussian Blue (#1D3557). oklch(33.7% 0.056 283), rgb(51, 51, 83).
Aa
White text reads best on this color (12.07:1).
About this color
#333353 is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.056 and its hue 283°. 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 12.07:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.73:1 |
| White text | 12.07:1 |
Values
| HEX | #333353 |
| RGB | rgb(51, 51, 83) |
| HSL | hsl(240, 24%, 26%) |
| OKLCH | oklch(33.7% 0.056 283) |
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 #333353 | 12.07:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #333353 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #333353 text on white | 12.07:1 | AAA | Lc 97.6 | Preferred for body text |
| #333353 text on black | 1.73:1 | 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
#BCBEDC
oklch(81% 0.042 282.4)
-
Step 400
400
#9A9CCA
oklch(70.8% 0.067 282.6)
-
Step 500
500
#8283BC
oklch(63.2% 0.085 282.9)
-
Step 600
600
#6C6CA8
oklch(55.7% 0.092 283)
-
Step 700
700
#5A5A90
oklch(49.2% 0.086 282.8)
-
Step 800
800
#4A4975
oklch(42.6% 0.072 283.9)
-
Step 900
900 (this color)
#333353
oklch(33.7% 0.056 283)
-
Step 950
950
#242437
oklch(26.9% 0.035 283.8)
#333353 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) | #293754 | 0.018 |
| Deuteranopia (no green cones) | #283552 | 0.018 |
| Tritanopia (no blue cones) | #2A393F | 0.048 |
| Achromatopsia (no color) | #363636 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #333353
#333353
oklch(33.7% 0.056 283)
- #3C3812
#3C3812
oklch(33.6% 0.056 103.3)
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 #333353, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.031
- Space Cadet #2B2D42 ΔE 0.036
- Gunmetal #293241 ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.040
- Onyx #343A40 ΔE 0.046
- Midnight Green #073B4C ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.059
- Marine Blue #01386A ΔE 0.061
Use #333353 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.