#4B57C4
Closest named color: Iris (#6258C4). oklch(50.9% 0.169 274), rgb(75, 87, 196).
Aa
White text reads best on this color (6.07:1).
About this color
#4B57C4 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.169 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.034 away. White text reads best on it, at 6.07:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.45:1 |
| White text | 6.07:1 |
Values
| HEX | #4B57C4 |
| RGB | rgb(75, 87, 196) |
| HSL | hsl(234, 51%, 53%) |
| OKLCH | oklch(50.9% 0.169 274) |
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 #4B57C4 | 6.07:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #4B57C4 | 3.45:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #4B57C4 text on white | 6.07:1 | AA | Lc 80.0 | Fine for body text |
| #4B57C4 text on black | 3.45:1 | AA large text | Lc -21.9 | 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
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#B0BDF6
oklch(80.8% 0.082 274.5)
-
Step 400
400
#8899F2
oklch(70.7% 0.132 274.4)
-
Step 500
500
#6C7DED
oklch(63.1% 0.168 274.1)
-
Step 600
600
#5663DB
oklch(55.5% 0.182 274.2)
-
Step 700
700 (this color)
#4B57C4
oklch(50.9% 0.169 274)
-
Step 800
800
#3A439A
oklch(42.6% 0.141 274.3)
-
Step 900
900
#313A7A
oklch(37.7% 0.108 274)
-
Step 950
950
#1C2248
oklch(26.9% 0.07 274)
#4B57C4 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) | #0068C8 | 0.059 |
| Deuteranopia (no green cones) | #005DC2 | 0.053 |
| Tritanopia (no blue cones) | #007185 | 0.144 |
| Achromatopsia (no color) | #626262 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B57C4
#4B57C4
oklch(50.9% 0.169 274)
- #796400
#796400
oklch(50.9% 0.104 94.5)
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 #4B57C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.034
- Warm Blue #4B57DB ΔE 0.036
- Slate Blue #6A5ACD ΔE 0.049
- Dark Periwinkle #665FD1 ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.054
- Bluey Purple #6241C7 ΔE 0.056
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Royal Blue #4169E1 ΔE 0.060
Use #4B57C4 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.