#42365A
Closest named color: Onyx (#343A40). oklch(36.2% 0.062 298.6), rgb(66, 54, 90).
Aa
White text reads best on this color (11.01:1).
About this color
#42365A is a dark, muted purple. In OKLCH its lightness is 36%, its chroma 0.062 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.057 away. White text reads best on it, at 11.01:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.90:1 |
| White text | 11.01:1 |
Values
| HEX | #42365A |
| RGB | rgb(66, 54, 90) |
| HSL | hsl(260, 25%, 28%) |
| OKLCH | oklch(36.2% 0.062 298.6) |
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 #42365A | 11.01:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #42365A | 1.90:1 | Fails | Lc 8.5 | Not readable |
| #42365A text on white | 11.01:1 | AAA | Lc 95.4 | Preferred for body text |
| #42365A text on black | 1.90:1 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DBD6E8
oklch(88.5% 0.025 298.6)
-
Step 300
300
#C4BBDB
oklch(81% 0.046 298.2)
-
Step 400
400
#A697C9
oklch(70.7% 0.074 298.3)
-
Step 500
500
#917CBC
oklch(63% 0.097 298.7)
-
Step 600
600
#7B65A8
oklch(55.6% 0.104 298.1)
-
Step 700
700
#685390
oklch(49% 0.098 298.6)
-
Step 800
800
#554475
oklch(42.6% 0.081 298.9)
-
Step 900
900 (this color)
#42365A
oklch(36.2% 0.062 298.6)
-
Step 950
950
#292237
oklch(27% 0.039 299.1)
#42365A 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) | #2D3C5B | 0.036 |
| Deuteranopia (no green cones) | #2F3C59 | 0.034 |
| Tritanopia (no blue cones) | #3D3C43 | 0.050 |
| Achromatopsia (no color) | #3C3C3C | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42365A
#42365A
oklch(36.2% 0.062 298.6)
- #3A4219
#3A4219
oklch(36.1% 0.063 118.9)
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 #42365A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.058
- Dark Grey Blue #29465B ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.061
- Charcoal Grey #3C4142 ΔE 0.063
- Gunmetal #293241 ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.064
- Charcoal #264653 ΔE 0.066
Use #42365A 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.