#37334D
Closest named color: Gunmetal (#293241). oklch(33.7% 0.045 290.8), rgb(55, 51, 77).
Aa
White text reads best on this color (12.04:1).
About this color
#37334D is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.045 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.033 away. White text reads best on it, at 12.04:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.74:1 |
| White text | 12.04:1 |
Values
| HEX | #37334D |
| RGB | rgb(55, 51, 77) |
| HSL | hsl(249, 20%, 25%) |
| OKLCH | oklch(33.7% 0.045 290.8) |
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 #37334D | 12.04:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #37334D | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #37334D text on white | 12.04:1 | AAA | Lc 97.5 | Preferred for body text |
| #37334D text on black | 1.74:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#EAE9F0
oklch(93.7% 0.009 292.8)
-
Step 200
200
#D9D7E5
oklch(88.5% 0.019 292.6)
-
Step 300
300
#C0BDD6
oklch(80.9% 0.035 291.1)
-
Step 400
400
#A09BC1
oklch(70.7% 0.055 290.9)
-
Step 500
500
#8982B1
oklch(63% 0.07 291.1)
-
Step 600
600
#736B9D
oklch(55.5% 0.077 291)
-
Step 700
700
#615A86
oklch(49.2% 0.07 290.9)
-
Step 800
800
#4F496D
oklch(42.7% 0.059 291.3)
-
Step 900
900 (this color)
#37334D
oklch(33.7% 0.045 290.8)
-
Step 950
950
#262434
oklch(27% 0.03 290)
#37334D 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) | #2C374E | 0.020 |
| Deuteranopia (no green cones) | #2C364C | 0.020 |
| Tritanopia (no blue cones) | #32373C | 0.038 |
| Achromatopsia (no color) | #363636 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37334D
#37334D
oklch(33.7% 0.045 290.8)
- #38391D
#38391D
oklch(33.6% 0.045 110.4)
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 #37334D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.034
- Onyx #343A40 ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.056
- Midnight Green #073B4C ΔE 0.058
- Dark Grey Blue #29465B ΔE 0.060
Use #37334D 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.