#37385E
Closest named color: Prussian Blue (#1D3557). oklch(35.8% 0.065 281.4), rgb(55, 56, 94).
Aa
White text reads best on this color (11.11:1).
About this color
#37385E is a dark, muted purple. In OKLCH its lightness is 36%, its chroma 0.065 and its hue 281°. 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 11.11:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.88:1 |
| White text | 11.11:1 |
Values
| HEX | #37385E |
| RGB | rgb(55, 56, 94) |
| HSL | hsl(238, 26%, 29%) |
| OKLCH | oklch(35.8% 0.065 281.4) |
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 #37385E | 11.11:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #37385E | 1.88:1 | Fails | Lc 8.3 | Not readable |
| #37385E text on white | 11.11:1 | AAA | Lc 95.6 | Preferred for body text |
| #37385E text on black | 1.88:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D7EB
oklch(88.4% 0.027 283.5)
-
Step 300
300
#BBBEE0
oklch(81% 0.048 281.3)
-
Step 400
400
#989BD1
oklch(70.7% 0.079 281.7)
-
Step 500
500
#7F82C5
oklch(63.1% 0.1 281.2)
-
Step 600
600
#696AB1
oklch(55.5% 0.109 281.6)
-
Step 700
700
#585898
oklch(49% 0.101 282)
-
Step 800
800
#48497C
oklch(42.9% 0.084 281.4)
-
Step 900
900 (this color)
#37385E
oklch(35.8% 0.065 281.4)
-
Step 950
950
#23243A
oklch(27% 0.041 281.3)
#37385E 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) | #2B3D60 | 0.021 |
| Deuteranopia (no green cones) | #293A5D | 0.021 |
| Tritanopia (no blue cones) | #2C3F46 | 0.056 |
| Achromatopsia (no color) | #3C3C3C | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37385E
#37385E
oklch(35.8% 0.065 281.4)
- #443D0E
#443D0E
oklch(35.7% 0.065 100.6)
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 #37385E, 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 Grey Blue #29465B ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.049
- Onyx #343A40 ΔE 0.056
- Charcoal #264653 ΔE 0.057
- Marine Blue #01386A ΔE 0.058
- Gunmetal #293241 ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.060
Use #37385E 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.