#42305D
Closest named color: Prussian Blue (#1D3557). oklch(35.1% 0.078 300.9), rgb(66, 48, 93).
Aa
White text reads best on this color (11.58:1).
About this color
#42305D is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.078 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.060 away. White text reads best on it, at 11.58:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.81:1 |
| White text | 11.58:1 |
Values
| HEX | #42305D |
| RGB | rgb(66, 48, 93) |
| HSL | hsl(264, 32%, 28%) |
| OKLCH | oklch(35.1% 0.078 300.9) |
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 #42305D | 11.58:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #42305D | 1.81:1 | Fails | Lc 7.3 | Not readable |
| #42305D text on white | 11.58:1 | AAA | Lc 96.5 | Preferred for body text |
| #42305D text on black | 1.81:1 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE7F4
oklch(93.5% 0.018 300.1)
-
Step 200
200
#DCD5EC
oklch(88.6% 0.032 299.6)
-
Step 300
300
#C7B8E1
oklch(80.8% 0.059 301.8)
-
Step 400
400
#AA93D2
oklch(70.7% 0.093 300.8)
-
Step 500
500
#9677C6
oklch(63.1% 0.12 301.1)
-
Step 600
600
#815FB3
oklch(55.7% 0.13 301)
-
Step 700
700
#6D4E9A
oklch(49.2% 0.121 300.9)
-
Step 800
800
#59407D
oklch(42.7% 0.101 301.2)
-
Step 900
900 (this color)
#42305D
oklch(35.1% 0.078 300.9)
-
Step 950
950
#2B203B
oklch(27% 0.051 301.9)
#42305D 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) | #23395F | 0.052 |
| Deuteranopia (no green cones) | #27395C | 0.049 |
| Tritanopia (no blue cones) | #3D3842 | 0.060 |
| Achromatopsia (no color) | #393939 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42305D
#42305D
oklch(35.1% 0.078 300.9)
- #354107
#354107
oklch(35.2% 0.079 121.2)
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 #42305D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.065
- Gunmetal #293241 ΔE 0.069
- Onyx #343A40 ΔE 0.071
- Dark Blue Grey #1F3B4D ΔE 0.071
- Dark Grey Blue #29465B ΔE 0.074
- Grape Purple #5D1451 ΔE 0.077
- Marine Blue #01386A ΔE 0.078
Use #42305D 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.