#4366E8
Closest named color: Royal Blue (#4169E1). oklch(56% 0.2 267.9), rgb(67, 102, 232).
Aa
White text reads best on this color (4.87:1).
About this color
#4366E8 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.200 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.013 away. White text reads best on it, at 4.87:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.200) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.30:1 |
| White text | 4.87:1 |
Values
| HEX | #4366E8 |
| RGB | rgb(67, 102, 232) |
| HSL | hsl(227, 78%, 59%) |
| OKLCH | oklch(56% 0.2 267.9) |
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 #4366E8 | 4.87:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #4366E8 | 4.30:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #4366E8 text on white | 4.87:1 | AA | Lc 73.3 | Content text, not long reading |
| #4366E8 text on black | 4.30:1 | AA large text | Lc -28.4 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CBD9FB
oklch(88.6% 0.049 267.7)
-
Step 300
300
#A7BFFC
oklch(80.9% 0.091 267.7)
-
Step 400
400
#7A9BFA
oklch(70.6% 0.144 268.1)
-
Step 500
500
#5A7FF8
oklch(63.1% 0.185 268)
-
Step 600
600 (this color)
#4366E8
oklch(56% 0.2 267.9)
-
Step 700
700
#3452C8
oklch(49% 0.187 267.9)
-
Step 800
800
#2B44A2
oklch(42.6% 0.155 267.9)
-
Step 900
900
#263B80
oklch(37.7% 0.119 267.6)
-
Step 950
950
#16234B
oklch(26.9% 0.076 267.6)
#4366E8 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) | #0079EC | 0.051 |
| Deuteranopia (no green cones) | #006AE5 | 0.036 |
| Tritanopia (no blue cones) | #00869D | 0.161 |
| Achromatopsia (no color) | #717171 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4366E8
#4366E8
oklch(56% 0.2 267.9)
- #916F00
#916F00
oklch(56% 0.114 87.3)
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 #4366E8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.013
- Neon Blue #4361EE ΔE 0.015
- Cerulean Blue #056EEE ΔE 0.036
- Warm Blue #4B57DB ΔE 0.039
- Azul #1D5DEC ΔE 0.040
- Bright Blue #0165FC ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.055
- Clear Blue #247AFD ΔE 0.056
Use #4366E8 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.