#4048A6
Closest named color: Blueberry (#464196). oklch(45% 0.149 275), rgb(64, 72, 166).
Aa
White text reads best on this color (7.79:1).
About this color
#4048A6 is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.149 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.031 away. White text reads best on it, at 7.79:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.69:1 |
| White text | 7.79:1 |
Values
| HEX | #4048A6 |
| RGB | rgb(64, 72, 166) |
| HSL | hsl(235, 44%, 45%) |
| OKLCH | oklch(45% 0.149 275) |
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 #4048A6 | 7.79:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #4048A6 | 2.69:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #4048A6 text on white | 7.79:1 | AAA | Lc 86.7 | Fine for body text |
| #4048A6 text on black | 2.69:1 | Fails | Lc -15.4 | 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
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#CFD7FA
oklch(88.4% 0.049 275.2)
-
Step 300
300
#B0BDF9
oklch(81% 0.086 274.8)
-
Step 400
400
#8898F7
oklch(70.8% 0.14 275)
-
Step 500
500
#6D7BF3
oklch(63.1% 0.178 275.1)
-
Step 600
600
#5760E2
oklch(55.6% 0.195 275.1)
-
Step 700
700
#484FC4
oklch(49.2% 0.18 275)
-
Step 800
800 (this color)
#4048A6
oklch(45% 0.149 275)
-
Step 900
900
#31387E
oklch(37.6% 0.117 275)
-
Step 950
950
#1D224A
oklch(27.1% 0.074 275)
#4048A6 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) | #0057A9 | 0.055 |
| Deuteranopia (no green cones) | #004EA4 | 0.050 |
| Tritanopia (no blue cones) | #005E70 | 0.127 |
| Achromatopsia (no color) | #525252 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4048A6
#4048A6
oklch(45% 0.149 275)
- #655400
#655400
oklch(45% 0.092 95.4)
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 #4048A6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.031
- Dark Slate Blue #483D8B ΔE 0.050
- Cobalt #1E488F ΔE 0.055
- Twilight #4E518B ΔE 0.058
- Sapphire #2138AB ΔE 0.059
- Dusk Blue #26538D ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.062
- Blue Blue #2242C7 ΔE 0.065
Use #4048A6 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.