#42345D
Closest named color: Prussian Blue (#1D3557). oklch(36% 0.071 298.5), rgb(66, 52, 93).
Aa
White text reads best on this color (11.16:1).
About this color
#42345D is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.071 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.058 away. White text reads best on it, at 11.16:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.88:1 |
| White text | 11.16:1 |
Values
| HEX | #42345D |
| RGB | rgb(66, 52, 93) |
| HSL | hsl(260, 28%, 28%) |
| OKLCH | oklch(36% 0.071 298.5) |
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 #42345D | 11.16:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #42345D | 1.88:1 | Fails | Lc 8.2 | Not readable |
| #42345D text on white | 11.16:1 | AAA | Lc 95.7 | Preferred for body text |
| #42345D text on black | 1.88:1 | 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
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DBD5EB
oklch(88.4% 0.031 298.2)
-
Step 300
300
#C5BADF
oklch(81% 0.053 298.8)
-
Step 400
400
#A795CF
oklch(70.7% 0.085 298.4)
-
Step 500
500
#927AC2
oklch(63% 0.109 298.6)
-
Step 600
600
#7D62AF
oklch(55.6% 0.119 298.6)
-
Step 700
700
#695196
oklch(49.1% 0.11 298.3)
-
Step 800
800
#56437A
oklch(42.8% 0.091 298.4)
-
Step 900
900 (this color)
#42345D
oklch(36% 0.071 298.5)
-
Step 950
950
#292139
oklch(26.9% 0.045 298.7)
#42345D 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) | #293B5F | 0.042 |
| Deuteranopia (no green cones) | #2B3B5C | 0.041 |
| Tritanopia (no blue cones) | #3D3B44 | 0.055 |
| Achromatopsia (no color) | #3B3B3B | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42345D
#42345D
oklch(36% 0.071 298.5)
- #394211
#394211
oklch(36% 0.071 119.1)
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 #42345D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.058
- Dark Grey Blue #29465B ΔE 0.064
- Onyx #343A40 ΔE 0.065
- Dark Blue Grey #1F3B4D ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.066
- Gunmetal #293241 ΔE 0.067
- Charcoal Grey #3C4142 ΔE 0.072
- Charcoal #264653 ΔE 0.073
Use #42345D 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.