#433563
Closest named color: Prussian Blue (#1D3557). oklch(36.6% 0.078 296.4), rgb(67, 53, 99).
Aa
White text reads best on this color (10.89:1).
About this color
#433563 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.078 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.063 away. White text reads best on it, at 10.89:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.92:1 |
| White text | 10.89:1 |
Values
| HEX | #433563 |
| RGB | rgb(67, 53, 99) |
| HSL | hsl(258, 30%, 30%) |
| OKLCH | oklch(36.6% 0.078 296.4) |
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 #433563 | 10.89:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #433563 | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #433563 text on white | 10.89:1 | AAA | Lc 95.1 | Preferred for body text |
| #433563 text on black | 1.92:1 | Fails | Lc -7.5 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F4
oklch(93.7% 0.016 297.5)
-
Step 200
200
#DBD5ED
oklch(88.5% 0.033 297.2)
-
Step 300
300
#C4B9E3
oklch(80.9% 0.06 297)
-
Step 400
400
#A694D5
oklch(70.6% 0.095 296.6)
-
Step 500
500
#9179C9
oklch(63.1% 0.12 296.6)
-
Step 600
600
#7B61B6
oklch(55.6% 0.13 296)
-
Step 700
700
#684F9D
oklch(49% 0.123 296.4)
-
Step 800
800
#55417F
oklch(42.6% 0.101 296.8)
-
Step 900
900 (this color)
#433563
oklch(36.6% 0.078 296.4)
-
Step 950
950
#29213C
oklch(27.1% 0.05 296.6)
#433563 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) | #273D65 | 0.046 |
| Deuteranopia (no green cones) | #2A3C62 | 0.043 |
| Tritanopia (no blue cones) | #3C3D47 | 0.062 |
| Achromatopsia (no color) | #3D3D3D | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #433563
#433563
oklch(36.6% 0.078 296.4)
- #3D4408
#3D4408
oklch(36.8% 0.079 116.4)
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 #433563, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.069
- Dark Blue Grey #1F3B4D ΔE 0.072
- Onyx #343A40 ΔE 0.073
- Space Cadet #2B2D42 ΔE 0.075
- Marine Blue #01386A ΔE 0.076
- Twilight Blue #0A437A ΔE 0.076
Use #433563 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.