#4F72F0
Closest named color: Royal Blue (#4169E1). oklch(59.5% 0.193 268.3), rgb(79, 114, 240).
Aa
Black text reads best on this color (4.99:1).
About this color
#4F72F0 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.193 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.036 away. Black text reads best on it, at 4.99:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.193) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #4F72F0 |
| RGB | rgb(79, 114, 240) |
| HSL | hsl(227, 84%, 63%) |
| OKLCH | oklch(59.5% 0.193 268.3) |
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 #4F72F0 | 4.20:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #4F72F0 | 4.99:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #4F72F0 text on white | 4.20:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #4F72F0 text on black | 4.99:1 | AA | Lc -33.1 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CAD9FD
oklch(88.6% 0.052 267.4)
-
Step 300
300
#A7BFFF
oklch(81% 0.095 268.4)
-
Step 400
400
#799BFE
oklch(70.8% 0.15 268.1)
-
Step 500
500 (this color)
#4F72F0
oklch(59.5% 0.193 268.3)
-
Step 600
600
#4163EC
oklch(55.7% 0.21 268.1)
-
Step 700
700
#3450CD
oklch(49% 0.195 268.4)
-
Step 800
800
#2B43A6
oklch(42.8% 0.162 268.3)
-
Step 900
900
#263A83
oklch(37.7% 0.125 268.3)
-
Step 950
950
#16234D
oklch(27.1% 0.079 267.9)
#4F72F0 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) | #1A83F4 | 0.049 |
| Deuteranopia (no green cones) | #0075ED | 0.044 |
| Tritanopia (no blue cones) | #0090A6 | 0.158 |
| Achromatopsia (no color) | #7C7C7C | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F72F0
#4F72F0
oklch(59.5% 0.193 268.3)
- #9D7900
#9D7900
oklch(59.5% 0.122 87.7)
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 #4F72F0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.036
- Clear Blue #247AFD ΔE 0.038
- Cornflower #6A79F7 ΔE 0.040
- Neon Blue #4361EE ΔE 0.044
- Cerulean Blue #056EEE ΔE 0.049
- Medium Slate Blue #7B68EE ΔE 0.059
- Bright Blue #0165FC ΔE 0.064
- Dark Periwinkle #665FD1 ΔE 0.065
Use #4F72F0 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.