#42426B
Closest named color: Dark Grey Blue (#29465B). oklch(39.8% 0.069 282.8), rgb(66, 66, 107).
Aa
White text reads best on this color (9.44:1).
About this color
#42426B is a dark, muted purple. In OKLCH its lightness is 40%, its chroma 0.069 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.049 away. White text reads best on it, at 9.44:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.22:1 |
| White text | 9.44:1 |
Values
| HEX | #42426B |
| RGB | rgb(66, 66, 107) |
| HSL | hsl(240, 24%, 34%) |
| OKLCH | oklch(39.8% 0.069 282.8) |
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 #42426B | 9.44:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #42426B | 2.22:1 | Fails | Lc 12.2 | Not readable |
| #42426B text on white | 9.44:1 | AAA | Lc 91.8 | Preferred for body text |
| #42426B text on black | 2.22:1 | Fails | Lc -10.6 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D6D7EC
oklch(88.5% 0.029 283.6)
-
Step 300
300
#BBBDE2
oklch(80.9% 0.052 282.7)
-
Step 400
400
#999AD3
oklch(70.7% 0.083 283.3)
-
Step 500
500
#8081C7
oklch(63.1% 0.104 282.4)
-
Step 600
600
#6A69B4
oklch(55.6% 0.115 282.6)
-
Step 700
700
#59579B
oklch(49.1% 0.107 283)
-
Step 800
800
#49487D
oklch(42.8% 0.087 283)
-
Step 900
900 (this color)
#42426B
oklch(39.8% 0.069 282.8)
-
Step 950
950
#23243B
oklch(27.1% 0.043 281.2)
#42426B 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) | #35476D | 0.022 |
| Deuteranopia (no green cones) | #33456A | 0.023 |
| Tritanopia (no blue cones) | #374A51 | 0.060 |
| Achromatopsia (no color) | #464646 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42426B
#42426B
oklch(39.8% 0.069 282.8)
- #4E4917
#4E4917
oklch(39.9% 0.069 103.6)
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 #42426B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.059
- Charcoal #264653 ΔE 0.062
- Twilight Blue #0A437A ΔE 0.062
- Dusk #4E5481 ΔE 0.063
- Light Navy #155084 ΔE 0.065
- Twilight #4E518B ΔE 0.067
- Cobalt #1E488F ΔE 0.071
Use #42426B 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.