#4B6BDB
Closest named color: Royal Blue (#4169E1). oklch(56.4% 0.175 268.3), rgb(75, 107, 219).
Aa
White text reads best on this color (4.74:1).
About this color
#4B6BDB is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.175 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.015 away. White text reads best on it, at 4.74:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #4B6BDB |
| RGB | rgb(75, 107, 219) |
| HSL | hsl(227, 67%, 58%) |
| OKLCH | oklch(56.4% 0.175 268.3) |
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 #4B6BDB | 4.74:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #4B6BDB | 4.42:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #4B6BDB text on white | 4.74:1 | AA | Lc 72.6 | Content text, not long reading |
| #4B6BDB text on black | 4.42:1 | AA large text | Lc -29.1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD9F7
oklch(88.6% 0.043 268.2)
-
Step 300
300
#ABBFF4
oklch(80.8% 0.078 268.5)
-
Step 400
400
#7F9DEF
oklch(70.8% 0.125 267.9)
-
Step 500
500
#6182EA
oklch(63.2% 0.16 268.3)
-
Step 600
600 (this color)
#4B6BDB
oklch(56.4% 0.175 268.3)
-
Step 700
700
#3B56BB
oklch(49.1% 0.162 268.5)
-
Step 800
800
#304798
oklch(42.7% 0.135 268.2)
-
Step 900
900
#2A3D79
oklch(37.8% 0.105 267.9)
-
Step 950
950
#192447
oklch(27.1% 0.067 268.5)
#4B6BDB 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) | #277ADF | 0.043 |
| Deuteranopia (no green cones) | #006DD9 | 0.044 |
| Tritanopia (no blue cones) | #008599 | 0.144 |
| Achromatopsia (no color) | #737373 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6BDB
#4B6BDB
oklch(56.4% 0.175 268.3)
- #927100
#927100
oklch(56.5% 0.116 88.3)
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 #4B6BDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.015
- Neon Blue #4361EE ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.043
- Warm Blue #4B57DB ΔE 0.048
- Cerulean Blue #056EEE ΔE 0.049
- Slate Blue #6A5ACD ΔE 0.056
- Light Indigo #6D5ACF ΔE 0.058
- Iris #6258C4 ΔE 0.059
Use #4B6BDB 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.