#370458
Closest named color: Deep Purple (#36013F). oklch(27% 0.133 305.9), rgb(55, 4, 88).
Aa
White text reads best on this color (15.90:1).
About this color
#370458 is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.133 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Purple (#36013F), ΔE 0.047 away. White text reads best on it, at 15.90:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Deep Purple (#36013F) |
| Black text | 1.32:1 |
| White text | 15.90:1 |
Values
| HEX | #370458 |
| RGB | rgb(55, 4, 88) |
| HSL | hsl(276, 91%, 18%) |
| OKLCH | oklch(27% 0.133 305.9) |
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 #370458 | 15.90:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #370458 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #370458 text on white | 15.90:1 | AAA | Lc 101.8 | Preferred for body text |
| #370458 text on black | 1.32:1 | 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 950.
-
Step 50
50
#F8F3FF
oklch(97.1% 0.017 304.8)
-
Step 100
100
#F0E4FF
oklch(93.6% 0.038 305.7)
-
Step 200
200
#E4CEFF
oklch(88.5% 0.07 305.4)
-
Step 300
300
#D4ACFF
oklch(80.9% 0.121 305.9)
-
Step 400
400
#BF7AFF
oklch(70.7% 0.195 306)
-
Step 500
500
#B04CFF
oklch(63.1% 0.253 305.8)
-
Step 600
600
#9E00F3
oklch(55.5% 0.287 305.9)
-
Step 700
700
#8500CE
oklch(49% 0.254 305.8)
-
Step 800
800
#6E00AB
oklch(42.7% 0.221 305.9)
-
Step 900
900
#5C0090
oklch(37.7% 0.195 306)
-
Step 950
950 (this color)
#370458
oklch(27% 0.133 305.9)
#370458 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) | #00215A | 0.097 |
| Deuteranopia (no green cones) | #002256 | 0.098 |
| Tritanopia (no blue cones) | #311D31 | 0.092 |
| Achromatopsia (no color) | #222222 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370458
#370458
oklch(27% 0.133 305.9)
- #1E2C00
#1E2C00
oklch(27% 0.069 126.1)
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 #370458, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Purple #36013F ΔE 0.047
- Dark Purple #35063E ΔE 0.048
- Eggplant Purple #430541 ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.055
- Deep Violet #490648 ΔE 0.055
- Royal Purple #4B006E ΔE 0.058
- Plum Purple #4E0550 ΔE 0.059
- Eggplant #380835 ΔE 0.066
Use #370458 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.