#37346A
Closest named color: Prussian Blue (#1D3557). oklch(35.7% 0.091 283.3), rgb(55, 52, 106).
Aa
White text reads best on this color (11.27:1).
About this color
#37346A is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.091 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.052 away. White text reads best on it, at 11.27:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.86:1 |
| White text | 11.27:1 |
Values
| HEX | #37346A |
| RGB | rgb(55, 52, 106) |
| HSL | hsl(243, 34%, 31%) |
| OKLCH | oklch(35.7% 0.091 283.3) |
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 #37346A | 11.27:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #37346A | 1.86:1 | Fails | Lc 8.0 | Not readable |
| #37346A text on white | 11.27:1 | AAA | Lc 95.9 | Preferred for body text |
| #37346A text on black | 1.86:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D5D6F2
oklch(88.4% 0.038 284)
-
Step 300
300
#BABCEC
oklch(81% 0.068 282.9)
-
Step 400
400
#9797E3
oklch(70.6% 0.11 283.2)
-
Step 500
500
#7F7CDB
oklch(63.1% 0.14 283)
-
Step 600
600
#6A63C8
oklch(55.6% 0.152 283.4)
-
Step 700
700
#5851AD
oklch(49% 0.142 283.3)
-
Step 800
800
#48438C
oklch(42.7% 0.117 283.3)
-
Step 900
900 (this color)
#37346A
oklch(35.7% 0.091 283.3)
-
Step 950
950
#232242
oklch(27.1% 0.058 283.2)
#37346A 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) | #1D3C6C | 0.039 |
| Deuteranopia (no green cones) | #1B3969 | 0.039 |
| Tritanopia (no blue cones) | #263F4A | 0.077 |
| Achromatopsia (no color) | #3B3B3B | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37346A
#37346A
oklch(35.7% 0.091 283.3)
- #443E00
#443E00
oklch(35.9% 0.076 103.4)
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 #37346A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.052
- Marine Blue #01386A ΔE 0.055
- Twilight Blue #0A437A ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.066
- Dark Grey Blue #29465B ΔE 0.068
- Marine #042E60 ΔE 0.068
- Dark Blue Grey #1F3B4D ΔE 0.069
- Space Cadet #2B2D42 ΔE 0.075
Use #37346A 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.