#423072
Closest named color: Dark Slate Blue (#483D8B). oklch(36.6% 0.109 292.8), rgb(66, 48, 114).
Aa
White text reads best on this color (11.06:1).
About this color
#423072 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.109 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.053 away. White text reads best on it, at 11.06:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.89:1 |
| White text | 11.06:1 |
Values
| HEX | #423072 |
| RGB | rgb(66, 48, 114) |
| HSL | hsl(256, 41%, 32%) |
| OKLCH | oklch(36.6% 0.109 292.8) |
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 #423072 | 11.06:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #423072 | 1.89:1 | Fails | Lc 8.6 | Not readable |
| #423072 text on white | 11.06:1 | AAA | Lc 95.3 | Preferred for body text |
| #423072 text on black | 1.89:1 | Fails | Lc -7.3 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D4F5
oklch(88.4% 0.045 292.4)
-
Step 300
300
#C2B7F1
oklch(80.8% 0.082 293.2)
-
Step 400
400
#A490EB
oklch(70.8% 0.131 292.8)
-
Step 500
500
#8F71E4
oklch(63% 0.168 293)
-
Step 600
600
#7A57D2
oklch(55.6% 0.181 292.6)
-
Step 700
700
#6746B6
oklch(49.1% 0.169 292.7)
-
Step 800
800
#543A93
oklch(42.6% 0.14 293)
-
Step 900
900 (this color)
#423072
oklch(36.6% 0.109 292.8)
-
Step 950
950
#281F45
oklch(27.1% 0.069 292.1)
#423072 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) | #0F3D74 | 0.069 |
| Deuteranopia (no green cones) | #143B71 | 0.065 |
| Tritanopia (no blue cones) | #353E4C | 0.088 |
| Achromatopsia (no color) | #3C3C3C | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423072
#423072
oklch(36.6% 0.109 292.8)
- #3F4300
#3F4300
oklch(36.7% 0.082 113.6)
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 #423072, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.053
- Blueberry #464196 ΔE 0.072
- Twilight Blue #0A437A ΔE 0.076
- Prussian Blue #1D3557 ΔE 0.077
- Marine Blue #01386A ΔE 0.078
- Indigo #4B0082 ΔE 0.078
- Royal Purple #4B006E ΔE 0.080
- Cobalt #1E488F ΔE 0.084
Use #423072 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.