#4B56B9
Closest named color: Iris (#6258C4). oklch(49.8% 0.155 274.6), rgb(75, 86, 185).
Aa
White text reads best on this color (6.30:1).
About this color
#4B56B9 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.155 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.039 away. White text reads best on it, at 6.30:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.33:1 |
| White text | 6.30:1 |
Values
| HEX | #4B56B9 |
| RGB | rgb(75, 86, 185) |
| HSL | hsl(234, 44%, 51%) |
| OKLCH | oklch(49.8% 0.155 274.6) |
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 #4B56B9 | 6.30:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #4B56B9 | 3.33:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #4B56B9 text on white | 6.30:1 | AA | Lc 81.1 | Fine for body text |
| #4B56B9 text on black | 3.33:1 | AA large text | Lc -20.8 | 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 700.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D0D8F5
oklch(88.5% 0.041 273.3)
-
Step 300
300
#B2BEF2
oklch(81% 0.075 274.5)
-
Step 400
400
#8A9AEB
oklch(70.7% 0.12 274.4)
-
Step 500
500
#6F7FE5
oklch(63.2% 0.153 274.5)
-
Step 600
600
#5966D3
oklch(55.7% 0.166 274.6)
-
Step 700
700 (this color)
#4B56B9
oklch(49.8% 0.155 274.6)
-
Step 800
800
#3C4594
oklch(42.7% 0.129 274.7)
-
Step 900
900
#333B76
oklch(37.8% 0.1 274.8)
-
Step 950
950
#1E2345
oklch(27.1% 0.063 275.1)
#4B56B9 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) | #1865BC | 0.053 |
| Deuteranopia (no green cones) | #005BB7 | 0.055 |
| Tritanopia (no blue cones) | #006D7F | 0.135 |
| Achromatopsia (no color) | #606060 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B56B9
#4B56B9
oklch(49.8% 0.155 274.6)
- #766100
#766100
oklch(49.9% 0.102 94.1)
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 #4B56B9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.039
- Warm Blue #4B57DB ΔE 0.053
- Slate Blue #6A5ACD ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.059
- Dark Periwinkle #665FD1 ΔE 0.060
- Mid Blue #276AB3 ΔE 0.061
- Blue With A Hint Of Purple #533CC6 ΔE 0.061
- French Blue #436BAD ΔE 0.062
Use #4B56B9 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.