#4C437C
Closest named color: Dark Slate Blue (#483D8B). oklch(42% 0.093 289), rgb(76, 67, 124).
Aa
White text reads best on this color (8.74:1).
About this color
#4C437C is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.093 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 8.74:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.40:1 |
| White text | 8.74:1 |
Values
| HEX | #4C437C |
| RGB | rgb(76, 67, 124) |
| HSL | hsl(249, 30%, 37%) |
| OKLCH | oklch(42% 0.093 289) |
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 #4C437C | 8.74:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #4C437C | 2.40:1 | Fails | Lc 14.1 | Not readable |
| #4C437C text on white | 8.74:1 | AAA | Lc 89.9 | Fine for body text |
| #4C437C text on black | 2.40:1 | Fails | Lc -12.4 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6EC
oklch(88.4% 0.03 289.9)
-
Step 300
300
#BFBBE2
oklch(80.8% 0.055 289.8)
-
Step 400
400
#9E98D4
oklch(70.7% 0.087 288.5)
-
Step 500
500
#887DC8
oklch(63% 0.111 289.5)
-
Step 600
600
#7266B5
oklch(55.7% 0.12 288.9)
-
Step 700
700
#60549C
oklch(49.2% 0.113 289.2)
-
Step 800
800 (this color)
#4C437C
oklch(42% 0.093 289)
-
Step 900
900
#413A65
oklch(37.6% 0.072 289.9)
-
Step 950
950
#26223B
oklch(26.9% 0.046 290.3)
#4C437C 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) | #2F4C7E | 0.045 |
| Deuteranopia (no green cones) | #2F497B | 0.043 |
| Tritanopia (no blue cones) | #3F4E59 | 0.078 |
| Achromatopsia (no color) | #4B4B4B | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C437C
#4C437C
oklch(42% 0.093 289)
- #515000
#515000
oklch(41.8% 0.091 108.9)
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 #4C437C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Twilight #4E518B ΔE 0.043
- Blueberry #464196 ΔE 0.045
- Dusk #4E5481 ΔE 0.048
- Dusk Blue #26538D ΔE 0.063
- Cobalt #1E488F ΔE 0.064
- Dusty Grape #545775 ΔE 0.065
- Light Navy #155084 ΔE 0.067
Use #4C437C 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.