#4C75E8
Closest named color: Royal Blue (#4169E1). oklch(59.4% 0.18 266.3), rgb(76, 117, 232).
Aa
Black text reads best on this color (5.01:1).
About this color
#4C75E8 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.180 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.035 away. Black text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #4C75E8 |
| RGB | rgb(76, 117, 232) |
| HSL | hsl(224, 77%, 60%) |
| OKLCH | oklch(59.4% 0.18 266.3) |
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 #4C75E8 | 4.18:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #4C75E8 | 5.01:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #4C75E8 text on white | 4.18:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #4C75E8 text on black | 5.01:1 | AA | Lc -33.2 | 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
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FA
oklch(88.5% 0.048 266)
-
Step 300
300
#A6C0FA
oklch(80.9% 0.087 265.8)
-
Step 400
400
#789DF8
oklch(70.8% 0.14 266.2)
-
Step 500
500 (this color)
#4C75E8
oklch(59.4% 0.18 266.3)
-
Step 600
600
#3E67E4
oklch(55.7% 0.195 266.3)
-
Step 700
700
#3054C6
oklch(49% 0.183 266.3)
-
Step 800
800
#2846A0
oklch(42.7% 0.15 266.1)
-
Step 900
900
#243C7F
oklch(37.7% 0.117 266.1)
-
Step 950
950
#15244A
oklch(27% 0.073 265.6)
#4C75E8 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) | #3383EC | 0.037 |
| Deuteranopia (no green cones) | #0075E6 | 0.042 |
| Tritanopia (no blue cones) | #0090A3 | 0.148 |
| Achromatopsia (no color) | #7C7C7C | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C75E8
#4C75E8
oklch(59.4% 0.18 266.3)
- #9E7800
#9E7800
oklch(59.4% 0.121 86.3)
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 #4C75E8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.035
- Clear Blue #247AFD ΔE 0.041
- Cornflower #6A79F7 ΔE 0.044
- Cerulean Blue #056EEE ΔE 0.049
- Neon Blue #4361EE ΔE 0.052
- Soft Blue #6488EA ΔE 0.059
- Dark Periwinkle #665FD1 ΔE 0.064
- Medium Slate Blue #7B68EE ΔE 0.065
Use #4C75E8 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.