#423359
Closest named color: Prussian Blue (#1D3557). oklch(35.5% 0.067 301.3), rgb(66, 51, 89).
Aa
White text reads best on this color (11.35:1).
About this color
#423359 is a dark, muted purple. In OKLCH its lightness is 36%, its chroma 0.067 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.057 away. White text reads best on it, at 11.35:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.84:1 |
| White text | 11.35:1 |
Values
| HEX | #423359 |
| RGB | rgb(66, 51, 89) |
| HSL | hsl(264, 27%, 27%) |
| OKLCH | oklch(35.5% 0.067 301.3) |
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 #423359 | 11.35:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #423359 | 1.84:1 | Fails | Lc 7.8 | Not readable |
| #423359 text on white | 11.35:1 | AAA | Lc 96.1 | Preferred for body text |
| #423359 text on black | 1.84:1 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DCD5E9
oklch(88.5% 0.028 301.7)
-
Step 300
300
#C6BADC
oklch(81% 0.049 301.4)
-
Step 400
400
#A995CB
oklch(70.7% 0.08 301.3)
-
Step 500
500
#947ABD
oklch(63% 0.102 301.4)
-
Step 600
600
#7F63AA
oklch(55.7% 0.111 301.1)
-
Step 700
700
#6B5191
oklch(49% 0.103 301.4)
-
Step 800
800
#574376
oklch(42.7% 0.085 300.9)
-
Step 900
900 (this color)
#423359
oklch(35.5% 0.067 301.3)
-
Step 950
950
#2A2138
oklch(26.9% 0.043 301.5)
#423359 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) | #2A3A5A | 0.042 |
| Deuteranopia (no green cones) | #2D3A58 | 0.039 |
| Tritanopia (no blue cones) | #3E3941 | 0.052 |
| Achromatopsia (no color) | #3A3A3A | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423359
#423359
oklch(35.5% 0.067 301.3)
- #374115
#374115
oklch(35.5% 0.067 120.7)
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 #423359, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.057
- Onyx #343A40 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.061
- Gunmetal #293241 ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.064
- Dark Grey Blue #29465B ΔE 0.065
- Charcoal Grey #3C4142 ΔE 0.069
- Charcoal #264653 ΔE 0.072
Use #423359 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.