#37335A
Closest named color: Prussian Blue (#1D3557). oklch(34.5% 0.067 287), rgb(55, 51, 90).
Aa
White text reads best on this color (11.77:1).
About this color
#37335A is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.067 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.039 away. White text reads best on it, at 11.77:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.78:1 |
| White text | 11.77:1 |
Values
| HEX | #37335A |
| RGB | rgb(55, 51, 90) |
| HSL | hsl(246, 28%, 28%) |
| OKLCH | oklch(34.5% 0.067 287) |
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 #37335A | 11.77:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #37335A | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #37335A text on white | 11.77:1 | AAA | Lc 97.0 | Preferred for body text |
| #37335A text on black | 1.78:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E9F3
oklch(93.7% 0.013 286.1)
-
Step 200
200
#D7D7EB
oklch(88.5% 0.027 285.8)
-
Step 300
300
#BEBCE0
oklch(80.9% 0.05 287.8)
-
Step 400
400
#9D99D1
oklch(70.7% 0.081 287.4)
-
Step 500
500
#857FC5
oklch(63% 0.104 286.9)
-
Step 600
600
#7068B1
oklch(55.7% 0.111 287.2)
-
Step 700
700
#5D5698
oklch(49% 0.104 286.8)
-
Step 800
800
#4C477B
oklch(42.7% 0.085 286.6)
-
Step 900
900 (this color)
#37335A
oklch(34.5% 0.067 287)
-
Step 950
950
#25233A
oklch(27% 0.042 287.2)
#37335A 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) | #26395C | 0.029 |
| Deuteranopia (no green cones) | #263759 | 0.028 |
| Tritanopia (no blue cones) | #2E3A42 | 0.056 |
| Achromatopsia (no color) | #383838 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37335A
#37335A
oklch(34.5% 0.067 287)
- #3D3B09
#3D3B09
oklch(34.4% 0.067 107.1)
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 #37335A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.051
- Gunmetal #293241 ΔE 0.052
- Onyx #343A40 ΔE 0.057
- Marine Blue #01386A ΔE 0.060
- Dark Grey Blue #29465B ΔE 0.060
- Marine #042E60 ΔE 0.066
Use #37335A 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.