#4A73EC
Closest named color: Royal Blue (#4169E1). oklch(59.2% 0.188 266.5), rgb(74, 115, 236).
Aa
Black text reads best on this color (4.95:1).
About this color
#4A73EC is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.188 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.032 away. Black text reads best on it, at 4.95:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.95:1 |
| White text | 4.23:1 |
Values
| HEX | #4A73EC |
| RGB | rgb(74, 115, 236) |
| HSL | hsl(225, 81%, 61%) |
| OKLCH | oklch(59.2% 0.188 266.5) |
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 #4A73EC | 4.23:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #4A73EC | 4.95:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #4A73EC text on white | 4.23:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #4A73EC text on black | 4.95:1 | AA | Lc -32.8 | 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 600.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CBD9F9
oklch(88.5% 0.047 266.7)
-
Step 300
300
#A8C0F8
oklch(81% 0.084 266.5)
-
Step 400
400
#7A9DF5
oklch(70.8% 0.135 266.6)
-
Step 500
500
#5981F1
oklch(63% 0.174 266.7)
-
Step 600
600 (this color)
#4A73EC
oklch(59.2% 0.188 266.5)
-
Step 700
700
#3355C2
oklch(49% 0.175 266.7)
-
Step 800
800
#2A479D
oklch(42.8% 0.144 266.3)
-
Step 900
900
#263C7D
oklch(37.7% 0.114 266.8)
-
Step 950
950
#162449
oklch(27% 0.071 266.2)
#4A73EC 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) | #2683F0 | 0.043 |
| Deuteranopia (no green cones) | #0074EA | 0.040 |
| Tritanopia (no blue cones) | #0090A5 | 0.152 |
| Achromatopsia (no color) | #7B7B7B | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A73EC
#4A73EC
oklch(59.2% 0.188 266.5)
- #9D7800
#9D7800
oklch(59.3% 0.121 86.9)
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 #4A73EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.032
- Clear Blue #247AFD ΔE 0.037
- Cerulean Blue #056EEE ΔE 0.044
- Neon Blue #4361EE ΔE 0.045
- Cornflower #6A79F7 ΔE 0.045
- Bright Blue #0165FC ΔE 0.063
- Medium Slate Blue #7B68EE ΔE 0.064
- Dark Periwinkle #665FD1 ΔE 0.065
Use #4A73EC 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.