#4647A3
Closest named color: Blueberry (#464196). oklch(45% 0.145 278.4), rgb(70, 71, 163).
Aa
White text reads best on this color (7.80:1).
About this color
#4647A3 is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.145 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.025 away. White text reads best on it, at 7.80:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.69:1 |
| White text | 7.80:1 |
Values
| HEX | #4647A3 |
| RGB | rgb(70, 71, 163) |
| HSL | hsl(239, 40%, 46%) |
| OKLCH | oklch(45% 0.145 278.4) |
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 #4647A3 | 7.80:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #4647A3 | 2.69:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #4647A3 text on white | 7.80:1 | AAA | Lc 86.8 | Fine for body text |
| #4647A3 text on black | 2.69:1 | Fails | Lc -15.3 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300
#B4BCF7
oklch(81% 0.084 278.4)
-
Step 400
400
#8E96F4
oklch(70.6% 0.137 278.6)
-
Step 500
500
#7479EF
oklch(63% 0.174 278.3)
-
Step 600
600
#5F5FDE
oklch(55.6% 0.189 278.3)
-
Step 700
700
#4F4DC0
oklch(49% 0.175 278.5)
-
Step 800
800 (this color)
#4647A3
oklch(45% 0.145 278.4)
-
Step 900
900
#36387C
oklch(37.8% 0.113 278.3)
-
Step 950
950
#1F2148
oklch(26.9% 0.071 278.2)
#4647A3 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) | #0256A6 | 0.061 |
| Deuteranopia (no green cones) | #004EA1 | 0.059 |
| Tritanopia (no blue cones) | #135C6E | 0.125 |
| Achromatopsia (no color) | #525252 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4647A3
#4647A3
oklch(45% 0.145 278.4)
- #635500
#635500
oklch(45% 0.093 98.1)
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 #4647A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.025
- Dark Slate Blue #483D8B ΔE 0.045
- Twilight #4E518B ΔE 0.053
- Cobalt #1E488F ΔE 0.059
- Dusk Blue #26538D ΔE 0.062
- Blue With A Hint Of Purple #533CC6 ΔE 0.063
- Denim Blue #3B5B92 ΔE 0.065
- Sapphire #2138AB ΔE 0.065
Use #4647A3 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.