#4B6DCD
Closest named color: Royal Blue (#4169E1). oklch(55.9% 0.153 266.8), rgb(75, 109, 205).
Aa
White text reads best on this color (4.80:1).
About this color
#4B6DCD is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.153 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.035 away. White text reads best on it, at 4.80:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.36:1 |
| White text | 4.80:1 |
Values
| HEX | #4B6DCD |
| RGB | rgb(75, 109, 205) |
| HSL | hsl(224, 57%, 55%) |
| OKLCH | oklch(55.9% 0.153 266.8) |
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 #4B6DCD | 4.80:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #4B6DCD | 4.36:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #4B6DCD text on white | 4.80:1 | AA | Lc 73.1 | Content text, not long reading |
| #4B6DCD text on black | 4.36:1 | AA large text | Lc -28.6 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F3
oklch(88.5% 0.038 267.3)
-
Step 300
300
#ACC0EE
oklch(80.9% 0.069 266.5)
-
Step 400
400
#819EE6
oklch(70.6% 0.111 266.8)
-
Step 500
500
#6284DE
oklch(63% 0.141 266.8)
-
Step 600
600 (this color)
#4B6DCD
oklch(55.9% 0.153 266.8)
-
Step 700
700
#3C5AB1
oklch(49.2% 0.143 266.8)
-
Step 800
800
#314A8F
oklch(42.7% 0.118 266.5)
-
Step 900
900
#2B3E72
oklch(37.6% 0.092 266.9)
-
Step 950
950
#192543
oklch(27% 0.058 266.1)
#4B6DCD 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) | #3D78D1 | 0.029 |
| Deuteranopia (no green cones) | #256DCB | 0.033 |
| Tritanopia (no blue cones) | #008393 | 0.129 |
| Achromatopsia (no color) | #727272 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6DCD
#4B6DCD
oklch(55.9% 0.153 266.8)
- #916E00
#916E00
oklch(55.8% 0.114 86.4)
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 #4B6DCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.035
- Windows Blue #3778BF ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.047
- French Blue #436BAD ΔE 0.051
- Mid Blue #276AB3 ΔE 0.055
- Iris #6258C4 ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.058
- Warm Blue #4B57DB ΔE 0.060
Use #4B6DCD 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.