#423456
Closest named color: Onyx (#343A40). oklch(35.6% 0.06 302.4), rgb(66, 52, 86).
Aa
White text reads best on this color (11.30:1).
About this color
#423456 is a dark, muted purple. In OKLCH its lightness is 36%, its chroma 0.060 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.054 away. White text reads best on it, at 11.30:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | muted (0.060) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.85:1 |
| White text | 11.30:1 |
Values
| HEX | #423456 |
| RGB | rgb(66, 52, 86) |
| HSL | hsl(265, 25%, 27%) |
| OKLCH | oklch(35.6% 0.06 302.4) |
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 #423456 | 11.30:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #423456 | 1.85:1 | Fails | Lc 7.8 | Not readable |
| #423456 text on white | 11.30:1 | AAA | Lc 96.0 | Preferred for body text |
| #423456 text on black | 1.85:1 | 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
#EBE8F1
oklch(93.6% 0.012 301.3)
-
Step 200
200
#DCD6E7
oklch(88.6% 0.024 301.9)
-
Step 300
300
#C6BAD9
oklch(80.9% 0.045 303)
-
Step 400
400
#A996C6
oklch(70.7% 0.072 302.7)
-
Step 500
500
#947CB8
oklch(63.1% 0.092 302.2)
-
Step 600
600
#7F64A4
oklch(55.6% 0.101 302.7)
-
Step 700
700
#6B538C
oklch(49.1% 0.092 302.5)
-
Step 800
800
#574472
oklch(42.7% 0.077 302.3)
-
Step 900
900 (this color)
#423456
oklch(35.6% 0.06 302.4)
-
Step 950
950
#2A2236
oklch(27% 0.038 302.3)
#423456 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) | #2C3A57 | 0.038 |
| Deuteranopia (no green cones) | #2F3A55 | 0.035 |
| Tritanopia (no blue cones) | #3F3941 | 0.045 |
| Achromatopsia (no color) | #3A3A3A | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423456
#423456
oklch(35.6% 0.06 302.4)
- #36411B
#36411B
oklch(35.5% 0.061 122.9)
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 #423456, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.058
- Gunmetal #293241 ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.060
- Dark Grey Blue #29465B ΔE 0.062
- Charcoal Grey #3C4142 ΔE 0.062
- Charcoal #264653 ΔE 0.068
Use #423456 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.