#4B6BDD
Closest named color: Royal Blue (#4169E1). oklch(56.6% 0.178 268.4), rgb(75, 107, 221).
Aa
White text reads best on this color (4.72:1).
About this color
#4B6BDD is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.178 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.014 away. White text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.44:1 |
| White text | 4.72:1 |
Values
| HEX | #4B6BDD |
| RGB | rgb(75, 107, 221) |
| HSL | hsl(227, 68%, 58%) |
| OKLCH | oklch(56.6% 0.178 268.4) |
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 #4B6BDD | 4.72:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #4B6BDD | 4.44:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #4B6BDD text on white | 4.72:1 | AA | Lc 72.4 | Content text, not long reading |
| #4B6BDD text on black | 4.44:1 | AA large text | Lc -29.3 | 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
#ABBFF5
oklch(80.9% 0.08 268.8)
-
Step 400
400
#7F9CF0
oklch(70.6% 0.128 268.6)
-
Step 500
500
#6081EB
oklch(63% 0.163 268.4)
-
Step 600
600 (this color)
#4B6BDD
oklch(56.6% 0.178 268.4)
-
Step 700
700
#3A56BD
oklch(49.2% 0.165 268.2)
-
Step 800
800
#304799
oklch(42.8% 0.137 268.3)
-
Step 900
900
#2A3C7A
oklch(37.7% 0.108 268.6)
-
Step 950
950
#192447
oklch(27.1% 0.067 268.5)
#4B6BDD 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) | #247AE1 | 0.043 |
| Deuteranopia (no green cones) | #006DDB | 0.044 |
| Tritanopia (no blue cones) | #00869A | 0.146 |
| Achromatopsia (no color) | #737373 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6BDD
#4B6BDD
oklch(56.6% 0.178 268.4)
- #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 #4B6BDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.014
- Neon Blue #4361EE ΔE 0.038
- Dark Periwinkle #665FD1 ΔE 0.044
- Cerulean Blue #056EEE ΔE 0.047
- Warm Blue #4B57DB ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.059
- Azul #1D5DEC ΔE 0.060
Use #4B6BDD 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.