#4247AD
Closest named color: Blueberry (#464196). oklch(45.5% 0.16 275.9), rgb(66, 71, 173).
Aa
White text reads best on this color (7.67:1).
About this color
#4247AD is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.160 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.039 away. White text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #4247AD |
| RGB | rgb(66, 71, 173) |
| HSL | hsl(237, 45%, 47%) |
| OKLCH | oklch(45.5% 0.16 275.9) |
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 #4247AD | 7.67:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #4247AD | 2.73:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #4247AD text on white | 7.67:1 | AAA | Lc 86.3 | Fine for body text |
| #4247AD text on black | 2.73:1 | Fails | Lc -15.8 | 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 800.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CFD7FC
oklch(88.5% 0.052 275.7)
-
Step 300
300
#B0BCFD
oklch(80.9% 0.093 276)
-
Step 400
400
#8896FC
oklch(70.6% 0.149 276)
-
Step 500
500
#6D78FA
oklch(63.1% 0.191 275.8)
-
Step 600
600
#585DE9
oklch(55.6% 0.207 275.8)
-
Step 700
700
#494BCB
oklch(49.1% 0.193 275.9)
-
Step 800
800 (this color)
#4247AD
oklch(45.5% 0.16 275.9)
-
Step 900
900
#323782
oklch(37.8% 0.124 275.8)
-
Step 950
950
#1D214C
oklch(27.1% 0.078 275.8)
#4247AD 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) | #0058B0 | 0.058 |
| Deuteranopia (no green cones) | #004FAB | 0.052 |
| Tritanopia (no blue cones) | #006073 | 0.136 |
| Achromatopsia (no color) | #535353 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4247AD
#4247AD
oklch(45.5% 0.16 275.9)
- #665600
#665600
oklch(45.5% 0.094 96.6)
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 #4247AD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.039
- Blue With A Hint Of Purple #533CC6 ΔE 0.051
- Majorelle Blue #3F37C9 ΔE 0.055
- Blue Blue #2242C7 ΔE 0.057
- Sapphire #2138AB ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.059
- Blurple #5539CC ΔE 0.061
- Bluey Purple #6241C7 ΔE 0.065
Use #4247AD 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.