#42369D
Closest named color: Blueberry (#464196). oklch(41.1% 0.16 282), rgb(66, 54, 157).
Aa
White text reads best on this color (9.34:1).
About this color
#42369D is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.160 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.031 away. White text reads best on it, at 9.34:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #42369D |
| RGB | rgb(66, 54, 157) |
| HSL | hsl(247, 49%, 41%) |
| OKLCH | oklch(41.1% 0.16 282) |
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 #42369D | 9.34:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #42369D | 2.24:1 | Fails | Lc 12.9 | Not readable |
| #42369D text on white | 9.34:1 | AAA | Lc 91.1 | Preferred for body text |
| #42369D text on black | 2.24:1 | Fails | Lc -11.2 | 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 800.
-
Step 50
50
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FC
oklch(93.5% 0.027 281.3)
-
Step 200
200
#D3D6FB
oklch(88.6% 0.051 281.6)
-
Step 300
300
#B6BAFC
oklch(80.9% 0.093 281.4)
-
Step 400
400
#9393FB
oklch(70.8% 0.15 281.9)
-
Step 500
500
#7B74F8
oklch(63.2% 0.191 281.8)
-
Step 600
600
#6758E7
oklch(55.7% 0.208 282)
-
Step 700
700
#5646C9
oklch(49.1% 0.194 282.1)
-
Step 800
800 (this color)
#42369D
oklch(41.1% 0.16 282)
-
Step 900
900
#3A3481
oklch(37.7% 0.125 282.1)
-
Step 950
950
#221F4B
oklch(27% 0.079 282.8)
#42369D 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) | #004AA0 | 0.069 |
| Deuteranopia (no green cones) | #00439B | 0.064 |
| Tritanopia (no blue cones) | #105064 | 0.137 |
| Achromatopsia (no color) | #474747 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42369D
#42369D
oklch(41.1% 0.16 282)
- #544C00
#544C00
oklch(41.2% 0.086 102.5)
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 #42369D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.031
- Dark Slate Blue #483D8B ΔE 0.037
- Sapphire #2138AB ΔE 0.049
- Indigo Blue #3A18B1 ΔE 0.060
- Imperial Purple #480CA8 ΔE 0.061
- Cobalt #1E488F ΔE 0.063
- Rebecca Purple #663399 ΔE 0.066
- Chrysanthemum #560BAD ΔE 0.068
Use #42369D 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.