#423351
Closest named color: Onyx (#343A40). oklch(35.1% 0.054 306.7), rgb(66, 51, 81).
Aa
White text reads best on this color (11.51:1).
About this color
#423351 is a dark, muted purple. In OKLCH its lightness is 35%, its chroma 0.054 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.049 away. White text reads best on it, at 11.51:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | muted (0.054) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.82:1 |
| White text | 11.51:1 |
Values
| HEX | #423351 |
| RGB | rgb(66, 51, 81) |
| HSL | hsl(270, 23%, 26%) |
| OKLCH | oklch(35.1% 0.054 306.7) |
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 #423351 | 11.51:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #423351 | 1.82:1 | Fails | Lc 7.4 | Not readable |
| #423351 text on white | 11.51:1 | AAA | Lc 96.5 | Preferred for body text |
| #423351 text on black | 1.82:1 | 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
#F6F4F8
oklch(97% 0.006 308.4)
-
Step 100
100
#ECE8F0
oklch(93.6% 0.011 308.3)
-
Step 200
200
#DDD6E5
oklch(88.6% 0.022 306.8)
-
Step 300
300
#C7BAD6
oklch(80.8% 0.041 306.4)
-
Step 400
400
#AB96C1
oklch(70.6% 0.066 306.9)
-
Step 500
500
#967CB1
oklch(63% 0.083 306.6)
-
Step 600
600
#81659D
oklch(55.6% 0.09 306.6)
-
Step 700
700
#6D5386
oklch(49% 0.085 306.9)
-
Step 800
800
#59446D
oklch(42.6% 0.071 307.1)
-
Step 900
900 (this color)
#423351
oklch(35.1% 0.054 306.7)
-
Step 950
950
#2B2234
oklch(27% 0.035 307)
#423351 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) | #2D3952 | 0.038 |
| Deuteranopia (no green cones) | #303950 | 0.034 |
| Tritanopia (no blue cones) | #40373E | 0.040 |
| Achromatopsia (no color) | #393939 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423351
#423351
oklch(35.1% 0.054 306.7)
- #334020
#334020
oklch(35.1% 0.054 127.1)
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 #423351, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.053
- Gunmetal #293241 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.059
- Dark Grey Blue #29465B ΔE 0.064
- Charcoal #264653 ΔE 0.068
Use #423351 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.