#4B64CA
Closest named color: Royal Blue (#4169E1). oklch(53.8% 0.16 269.9), rgb(75, 100, 202).
Aa
White text reads best on this color (5.28:1).
About this color
#4B64CA is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.160 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.037 away. White text reads best on it, at 5.28:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #4B64CA |
| RGB | rgb(75, 100, 202) |
| HSL | hsl(228, 55%, 54%) |
| OKLCH | oklch(53.8% 0.16 269.9) |
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 #4B64CA | 5.28:1 | AA | Lc -81.3 | Fine for body text |
| Black text on #4B64CA | 3.97:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #4B64CA text on white | 5.28:1 | AA | Lc 76.0 | Fine for body text |
| #4B64CA text on black | 3.97:1 | AA large text | Lc -25.8 | 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 600.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CFD9F5
oklch(88.6% 0.04 270)
-
Step 300
300
#AEBFF0
oklch(80.9% 0.072 269.8)
-
Step 400
400
#849DE9
oklch(70.8% 0.115 269.4)
-
Step 500
500
#6782E2
oklch(63.1% 0.148 269.9)
-
Step 600
600 (this color)
#4B64CA
oklch(53.8% 0.16 269.9)
-
Step 700
700
#4157B4
oklch(49.1% 0.149 270.1)
-
Step 800
800
#354892
oklch(42.7% 0.124 269.7)
-
Step 900
900
#2E3D74
oklch(37.7% 0.096 269.9)
-
Step 950
950
#1B2444
oklch(27% 0.061 270.1)
#4B64CA 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) | #2B72CE | 0.042 |
| Deuteranopia (no green cones) | #0366C8 | 0.048 |
| Tritanopia (no blue cones) | #007C8D | 0.137 |
| Achromatopsia (no color) | #6C6C6C | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B64CA
#4B64CA
oklch(53.8% 0.16 269.9)
- #876A00
#876A00
oklch(53.8% 0.11 89.7)
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 #4B64CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.039
- Iris #6258C4 ΔE 0.040
- Warm Blue #4B57DB ΔE 0.042
- Slate Blue #6A5ACD ΔE 0.047
- Light Indigo #6D5ACF ΔE 0.051
- French Blue #436BAD ΔE 0.053
- Mid Blue #276AB3 ΔE 0.053
Use #4B64CA 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.