#424DB2
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(47% 0.159 273.9), rgb(66, 77, 178).
Aa
White text reads best on this color (7.15:1).
About this color
#424DB2 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.159 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.052 away. White text reads best on it, at 7.15:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.159) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.93:1 |
| White text | 7.15:1 |
Values
| HEX | #424DB2 |
| RGB | rgb(66, 77, 178) |
| HSL | hsl(234, 46%, 48%) |
| OKLCH | oklch(47% 0.159 273.9) |
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 #424DB2 | 7.15:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #424DB2 | 2.93:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #424DB2 text on white | 7.15:1 | AAA | Lc 84.4 | Fine for body text |
| #424DB2 text on black | 2.93:1 | Fails | Lc -17.5 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D0D8F6
oklch(88.6% 0.042 273.7)
-
Step 300
300
#B1BEF3
oklch(81% 0.076 273.9)
-
Step 400
400
#899AED
oklch(70.7% 0.123 274)
-
Step 500
500
#6D7FE7
oklch(63.2% 0.157 273.7)
-
Step 600
600
#5765D5
oklch(55.5% 0.171 274.1)
-
Step 700
700 (this color)
#424DB2
oklch(47% 0.159 273.9)
-
Step 800
800
#3A4596
oklch(42.7% 0.132 273.6)
-
Step 900
900
#323B77
oklch(37.8% 0.102 274.1)
-
Step 950
950
#1D2346
oklch(27.1% 0.065 273.9)
#424DB2 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) | #005DB5 | 0.055 |
| Deuteranopia (no green cones) | #0053B0 | 0.049 |
| Tritanopia (no blue cones) | #006578 | 0.134 |
| Achromatopsia (no color) | #585858 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #424DB2
#424DB2
oklch(47% 0.159 273.9)
- #6D5900
#6D5900
oklch(47% 0.096 93.7)
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 #424DB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue With A Hint Of Purple #533CC6 ΔE 0.052
- Blueberry #464196 ΔE 0.052
- Blue Blue #2242C7 ΔE 0.057
- Majorelle Blue #3F37C9 ΔE 0.059
- Blurple #5539CC ΔE 0.062
- Bluey Purple #6241C7 ΔE 0.062
- Iris #6258C4 ΔE 0.063
- Twilight #4E518B ΔE 0.067
Use #424DB2 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.