#4B56BC
Closest named color: Iris (#6258C4). oklch(50.1% 0.159 274.5), rgb(75, 86, 188).
Aa
White text reads best on this color (6.25:1).
About this color
#4B56BC is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.159 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.037 away. White text reads best on it, at 6.25:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.159) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.35:1 |
| White text | 6.25:1 |
Values
| HEX | #4B56BC |
| RGB | rgb(75, 86, 188) |
| HSL | hsl(234, 46%, 52%) |
| OKLCH | oklch(50.1% 0.159 274.5) |
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 #4B56BC | 6.25:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #4B56BC | 3.35:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #4B56BC text on white | 6.25:1 | AA | Lc 80.9 | Fine for body text |
| #4B56BC text on black | 3.35:1 | AA large text | Lc -21.0 | 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
#B1BDF3
oklch(80.8% 0.078 274.8)
-
Step 400
400
#8A9AED
oklch(70.8% 0.123 274.5)
-
Step 500
500
#6E7EE7
oklch(63% 0.158 274.5)
-
Step 600
600
#5865D5
oklch(55.6% 0.171 274.5)
-
Step 700
700 (this color)
#4B56BC
oklch(50.1% 0.159 274.5)
-
Step 800
800
#3B4595
oklch(42.7% 0.13 274.2)
-
Step 900
900
#323B77
oklch(37.8% 0.102 274.1)
-
Step 950
950
#1D2346
oklch(27.1% 0.065 273.9)
#4B56BC 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) | #1165C0 | 0.055 |
| Deuteranopia (no green cones) | #005CBA | 0.055 |
| Tritanopia (no blue cones) | #006E80 | 0.139 |
| Achromatopsia (no color) | #606060 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B56BC
#4B56BC
oklch(50.1% 0.159 274.5)
- #766200
#766200
oklch(50.1% 0.103 95)
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 #4B56BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.037
- Warm Blue #4B57DB ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.057
- Blue With A Hint Of Purple #533CC6 ΔE 0.059
- Light Indigo #6D5ACF ΔE 0.060
- Mid Blue #276AB3 ΔE 0.062
Use #4B56BC 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.