#373351
Closest named color: Space Cadet (#2B2D42). oklch(33.9% 0.052 289.4), rgb(55, 51, 81).
Aa
White text reads best on this color (11.96:1).
About this color
#373351 is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.052 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.038 away. White text reads best on it, at 11.96:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.75:1 |
| White text | 11.96:1 |
Values
| HEX | #373351 |
| RGB | rgb(55, 51, 81) |
| HSL | hsl(248, 23%, 26%) |
| OKLCH | oklch(33.9% 0.052 289.4) |
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 #373351 | 11.96:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #373351 | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #373351 text on white | 11.96:1 | AAA | Lc 97.4 | Preferred for body text |
| #373351 text on black | 1.75:1 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F1
oklch(93.6% 0.011 286.2)
-
Step 200
200
#D8D7E7
oklch(88.5% 0.022 288.8)
-
Step 300
300
#BFBDD9
oklch(80.9% 0.039 288.8)
-
Step 400
400
#9F9BC6
oklch(70.8% 0.062 289)
-
Step 500
500
#8881B7
oklch(63% 0.081 289.8)
-
Step 600
600
#726AA3
oklch(55.5% 0.088 289.7)
-
Step 700
700
#60598C
oklch(49.3% 0.081 289.4)
-
Step 800
800
#4E4971
oklch(42.8% 0.066 289)
-
Step 900
900 (this color)
#373351
oklch(33.9% 0.052 289.4)
-
Step 950
950
#262436
oklch(27.1% 0.033 289.1)
#373351 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) | #2B3752 | 0.021 |
| Deuteranopia (no green cones) | #2B3650 | 0.021 |
| Tritanopia (no blue cones) | #31383E | 0.043 |
| Achromatopsia (no color) | #373737 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #373351
#373351
oklch(33.9% 0.052 289.4)
- #3A3A18
#3A3A18
oklch(34% 0.052 108.9)
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 #373351, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.038
- Gunmetal #293241 ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.043
- Onyx #343A40 ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.059
- Midnight Green #073B4C ΔE 0.060
- Charcoal Grey #3C4142 ΔE 0.060
Use #373351 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.