#4643DB
Closest named color: Blurple (#5539CC). oklch(49.1% 0.223 275.2), rgb(70, 67, 219).
Aa
White text reads best on this color (6.80:1).
About this color
#4643DB is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.223 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Blurple (#5539CC), ΔE 0.037 away. White text reads best on it, at 6.80:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.223) |
| Temperature | cool |
| Nearest name | Blurple (#5539CC) |
| Black text | 3.08:1 |
| White text | 6.80:1 |
Values
| HEX | #4643DB |
| RGB | rgb(70, 67, 219) |
| HSL | hsl(241, 68%, 56%) |
| OKLCH | oklch(49.1% 0.223 275.2) |
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 #4643DB | 6.80:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #4643DB | 3.08:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #4643DB text on white | 6.80:1 | AA | Lc 82.7 | Fine for body text |
| #4643DB text on black | 3.08:1 | AA large text | Lc -19.2 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E9FF
oklch(93.7% 0.03 275.6)
-
Step 200
200
#CED7FF
oklch(88.5% 0.056 275.2)
-
Step 300
300
#AEBCFF
oklch(80.9% 0.096 274.9)
-
Step 400
400
#8696FF
oklch(70.7% 0.154 275.2)
-
Step 500
500
#6B77FF
oklch(63.1% 0.199 275.3)
-
Step 600
600
#5555FB
oklch(55.7% 0.239 275.3)
-
Step 700
700 (this color)
#4643DB
oklch(49.1% 0.223 275.2)
-
Step 800
800
#3939B1
oklch(42.8% 0.185 275.3)
-
Step 900
900
#30338C
oklch(37.7% 0.145 275.5)
-
Step 950
950
#1B1F52
oklch(27% 0.092 275)
#4643DB 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) | #0062E0 | 0.073 |
| Deuteranopia (no green cones) | #0054D8 | 0.055 |
| Tritanopia (no blue cones) | #006D8A | 0.179 |
| Achromatopsia (no color) | #5B5B5B | 0.224 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4643DB
#4643DB
oklch(49.1% 0.223 275.2)
- #735F00
#735F00
oklch(49.1% 0.101 94.6)
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 #4643DB, closest first.
No curated palette has a color within ΔE 0.04 of #4643DB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blurple #5539CC ΔE 0.037
- Majorelle Blue #3F37C9 ΔE 0.040
- Blue With A Hint Of Purple #533CC6 ΔE 0.041
- Warm Blue #4B57DB ΔE 0.043
- Purpley Blue #5F34E7 ΔE 0.045
- Blue Blue #2242C7 ΔE 0.053
- Bluey Purple #6241C7 ΔE 0.054
- Burple #6832E3 ΔE 0.058
Use #4643DB 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.