#42316A
Closest named color: Dark Slate Blue (#483D8B). oklch(36.2% 0.096 294.9), rgb(66, 49, 106).
Aa
White text reads best on this color (11.17:1).
About this color
#42316A is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.096 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.062 away. White text reads best on it, at 11.17:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.87:1 |
| White text | 11.17:1 |
Values
| HEX | #42316A |
| RGB | rgb(66, 49, 106) |
| HSL | hsl(258, 37%, 30%) |
| OKLCH | oklch(36.2% 0.096 294.9) |
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 #42316A | 11.17:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #42316A | 1.87:1 | Fails | Lc 8.3 | Not readable |
| #42316A text on white | 11.17:1 | AAA | Lc 95.6 | Preferred for body text |
| #42316A text on black | 1.87:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD4F1
oklch(88.4% 0.04 295.1)
-
Step 300
300
#C3B8EB
oklch(80.9% 0.072 294.6)
-
Step 400
400
#A692E1
oklch(70.8% 0.115 294.9)
-
Step 500
500
#9175D8
oklch(63.2% 0.146 294.9)
-
Step 600
600
#7C5BC5
oklch(55.6% 0.159 295.1)
-
Step 700
700
#694AAB
oklch(49.2% 0.149 295.1)
-
Step 800
800
#553D8A
oklch(42.6% 0.123 295)
-
Step 900
900 (this color)
#42316A
oklch(36.2% 0.096 294.9)
-
Step 950
950
#292041
oklch(27.2% 0.06 294.6)
#42316A 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) | #1B3C6C | 0.060 |
| Deuteranopia (no green cones) | #1F3A69 | 0.055 |
| Tritanopia (no blue cones) | #393C48 | 0.077 |
| Achromatopsia (no color) | #3B3B3B | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42316A
#42316A
oklch(36.2% 0.096 294.9)
- #3D4200
#3D4200
oklch(36.2% 0.082 114.5)
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 #42316A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.068
- Marine Blue #01386A ΔE 0.075
- Twilight Blue #0A437A ΔE 0.077
- Dark Grey Blue #29465B ΔE 0.080
- Blueberry #464196 ΔE 0.081
- Space Cadet #2B2D42 ΔE 0.083
- Dark Blue Grey #1F3B4D ΔE 0.084
Use #42316A 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.