#37335F
Closest named color: Prussian Blue (#1D3557). oklch(34.8% 0.075 285.9), rgb(55, 51, 95).
Aa
White text reads best on this color (11.65:1).
About this color
#37335F is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.075 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.041 away. White text reads best on it, at 11.65:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.80:1 |
| White text | 11.65:1 |
Values
| HEX | #37335F |
| RGB | rgb(55, 51, 95) |
| HSL | hsl(245, 30%, 29%) |
| OKLCH | oklch(34.8% 0.075 285.9) |
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 #37335F | 11.65:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #37335F | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #37335F text on white | 11.65:1 | AAA | Lc 96.7 | Preferred for body text |
| #37335F text on black | 1.80:1 | 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
#E8E8F5
oklch(93.5% 0.017 286.1)
-
Step 200
200
#D7D7EE
oklch(88.6% 0.031 285.7)
-
Step 300
300
#BDBCE4
oklch(80.9% 0.056 286.2)
-
Step 400
400
#9B98D7
oklch(70.6% 0.091 286)
-
Step 500
500
#847ECC
oklch(63.1% 0.116 286.1)
-
Step 600
600
#6E66B9
oklch(55.6% 0.126 285.9)
-
Step 700
700
#5C549F
oklch(49% 0.117 286.1)
-
Step 800
800
#4B4581
oklch(42.6% 0.097 286.1)
-
Step 900
900 (this color)
#37335F
oklch(34.8% 0.075 285.9)
-
Step 950
950
#24233D
oklch(27.1% 0.048 284.5)
#37335F 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) | #233A61 | 0.033 |
| Deuteranopia (no green cones) | #23375E | 0.031 |
| Tritanopia (no blue cones) | #2C3C44 | 0.065 |
| Achromatopsia (no color) | #383838 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37335F
#37335F
oklch(34.8% 0.075 285.9)
- #3F3C00
#3F3C00
oklch(34.8% 0.074 106.5)
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 #37335F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.057
- Marine Blue #01386A ΔE 0.058
- Gunmetal #293241 ΔE 0.060
- Dark Grey Blue #29465B ΔE 0.063
- Marine #042E60 ΔE 0.065
- Onyx #343A40 ΔE 0.065
Use #37335F 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.