#37356E
Closest named color: Marine Blue (#01386A). oklch(36.2% 0.096 282.1), rgb(55, 53, 110).
Aa
White text reads best on this color (11.07:1).
About this color
#37356E is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.096 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.056 away. White text reads best on it, at 11.07:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.89:1 |
| White text | 11.07:1 |
Values
| HEX | #37356E |
| RGB | rgb(55, 53, 110) |
| HSL | hsl(242, 35%, 32%) |
| OKLCH | oklch(36.2% 0.096 282.1) |
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 #37356E | 11.07:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #37356E | 1.89:1 | Fails | Lc 8.5 | Not readable |
| #37356E text on white | 11.07:1 | AAA | Lc 95.4 | Preferred for body text |
| #37356E text on black | 1.89:1 | 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
#E7E8F8
oklch(93.5% 0.022 283.1)
-
Step 200
200
#D4D7F4
oklch(88.6% 0.04 280.9)
-
Step 300
300
#B9BCEF
oklch(81% 0.072 282)
-
Step 400
400
#9597E6
oklch(70.6% 0.115 281.9)
-
Step 500
500
#7D7BDF
oklch(63% 0.148 282.2)
-
Step 600
600
#6762CD
oklch(55.5% 0.161 281.9)
-
Step 700
700
#5651B1
oklch(49.1% 0.148 281.8)
-
Step 800
800
#46438F
oklch(42.7% 0.122 281.7)
-
Step 900
900 (this color)
#37356E
oklch(36.2% 0.096 282.1)
-
Step 950
950
#222243
oklch(27% 0.06 281.6)
#37356E 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) | #1C3E70 | 0.040 |
| Deuteranopia (no green cones) | #183A6D | 0.040 |
| Tritanopia (no blue cones) | #24414C | 0.082 |
| Achromatopsia (no color) | #3C3C3C | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37356E
#37356E
oklch(36.2% 0.096 282.1)
- #463F00
#463F00
oklch(36.3% 0.076 102.4)
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 #37356E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.056
- Twilight Blue #0A437A ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.060
- Dark Grey Blue #29465B ΔE 0.069
- Marine #042E60 ΔE 0.071
- Cobalt #1E488F ΔE 0.073
- Dark Blue Grey #1F3B4D ΔE 0.074
Use #37356E 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.