#42395A
Closest named color: Dark Grey Blue (#29465B). oklch(36.9% 0.057 296), rgb(66, 57, 90).
Aa
White text reads best on this color (10.68:1).
About this color
#42395A is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.057 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.051 away. White text reads best on it, at 10.68:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.057) |
| Temperature | in between |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #42395A |
| RGB | rgb(66, 57, 90) |
| HSL | hsl(256, 22%, 29%) |
| OKLCH | oklch(36.9% 0.057 296) |
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 #42395A | 10.68:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #42395A | 1.96:1 | Fails | Lc 9.2 | Not readable |
| #42395A text on white | 10.68:1 | AAA | Lc 94.8 | Preferred for body text |
| #42395A text on black | 1.96:1 | Fails | Lc -7.9 | 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
#EAE8F1
oklch(93.5% 0.012 296.3)
-
Step 200
200
#DAD6E7
oklch(88.4% 0.023 296.7)
-
Step 300
300
#C2BCDA
oklch(81% 0.042 294.6)
-
Step 400
400
#A498C7
oklch(70.7% 0.069 296.3)
-
Step 500
500
#8E7FB8
oklch(63.2% 0.086 295.9)
-
Step 600
600
#7867A4
oklch(55.5% 0.094 296)
-
Step 700
700
#65568D
oklch(49.2% 0.088 295.5)
-
Step 800
800
#534672
oklch(42.7% 0.073 296.8)
-
Step 900
900 (this color)
#42395A
oklch(36.9% 0.057 296)
-
Step 950
950
#282336
oklch(27.1% 0.035 296)
#42395A 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) | #313E5B | 0.029 |
| Deuteranopia (no green cones) | #323E59 | 0.029 |
| Tritanopia (no blue cones) | #3D3E45 | 0.045 |
| Achromatopsia (no color) | #3E3E3E | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42395A
#42395A
oklch(36.9% 0.057 296)
- #3E431E
#3E431E
oklch(36.9% 0.057 115.6)
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 #42395A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.051
- Onyx #343A40 ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.059
- Charcoal #264653 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.059
- Gunmetal #293241 ΔE 0.065
- Space Cadet #2B2D42 ΔE 0.068
Use #42395A 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.