#4C70EC
Closest named color: Royal Blue (#4169E1). oklch(58.7% 0.191 267.9), rgb(76, 112, 236).
Aa
Black text reads best on this color (4.83:1).
About this color
#4C70EC is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.191 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.028 away. Black text reads best on it, at 4.83:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.191) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #4C70EC |
| RGB | rgb(76, 112, 236) |
| HSL | hsl(227, 81%, 61%) |
| OKLCH | oklch(58.7% 0.191 267.9) |
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 #4C70EC | 4.34:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #4C70EC | 4.83:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #4C70EC text on white | 4.34:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #4C70EC text on black | 4.83:1 | AA | Lc -32.0 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CBD9FA
oklch(88.5% 0.048 267.2)
-
Step 300
300
#A9BFF9
oklch(80.9% 0.086 268.4)
-
Step 400
400
#7B9CF6
oklch(70.7% 0.137 267.6)
-
Step 500
500
#5C80F3
oklch(63.1% 0.177 268)
-
Step 600
600 (this color)
#4C70EC
oklch(58.7% 0.191 267.9)
-
Step 700
700
#3654C4
oklch(49.1% 0.178 267.8)
-
Step 800
800
#2D459E
oklch(42.6% 0.147 268.1)
-
Step 900
900
#273C7E
oklch(37.8% 0.115 267.4)
-
Step 950
950
#17234A
oklch(26.9% 0.074 268.3)
#4C70EC 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) | #1981F0 | 0.048 |
| Deuteranopia (no green cones) | #0072E9 | 0.043 |
| Tritanopia (no blue cones) | #008EA3 | 0.157 |
| Achromatopsia (no color) | #797979 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C70EC
#4C70EC
oklch(58.7% 0.191 267.9)
- #9A7700
#9A7700
oklch(58.7% 0.12 88)
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 #4C70EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.028
- Neon Blue #4361EE ΔE 0.039
- Clear Blue #247AFD ΔE 0.040
- Cerulean Blue #056EEE ΔE 0.044
- Cornflower #6A79F7 ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.060
- Bright Blue #0165FC ΔE 0.061
- Medium Slate Blue #7B68EE ΔE 0.062
Use #4C70EC 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.