#4B6DDD
Closest named color: Royal Blue (#4169E1). oklch(57% 0.175 267.8), rgb(75, 109, 221).
Aa
White text reads best on this color (4.63:1).
About this color
#4B6DDD is a medium-dark, vivid blue. In OKLCH its lightness is 57%, 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 0.017 away. White text reads best on it, at 4.63:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.53:1 |
| White text | 4.63:1 |
Values
| HEX | #4B6DDD |
| RGB | rgb(75, 109, 221) |
| HSL | hsl(226, 68%, 58%) |
| OKLCH | oklch(57% 0.175 267.8) |
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 #4B6DDD | 4.63:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #4B6DDD | 4.53:1 | AA | Lc 32.2 | Non-text elements, placeholder text |
| #4B6DDD text on white | 4.63:1 | AA | Lc 71.8 | Content text, not long reading |
| #4B6DDD text on black | 4.53:1 | AA | Lc -29.8 | 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
#CCD9F7
oklch(88.5% 0.044 266.9)
-
Step 300
300
#AABFF5
oklch(80.8% 0.08 268.1)
-
Step 400
400
#7E9DEF
oklch(70.7% 0.126 267.4)
-
Step 500
500
#5F82EA
oklch(63.1% 0.161 267.6)
-
Step 600
600 (this color)
#4B6DDD
oklch(57% 0.175 267.8)
-
Step 700
700
#3956BC
oklch(49% 0.164 267.9)
-
Step 800
800
#2F4798
oklch(42.6% 0.136 267.8)
-
Step 900
900
#293D79
oklch(37.8% 0.105 267.4)
-
Step 950
950
#182447
oklch(27% 0.067 267.5)
#4B6DDD 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) | #2A7CE1 | 0.042 |
| Deuteranopia (no green cones) | #006EDB | 0.044 |
| Tritanopia (no blue cones) | #00879B | 0.144 |
| Achromatopsia (no color) | #757575 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6DDD
#4B6DDD
oklch(57% 0.175 267.8)
- #947200
#947200
oklch(57% 0.116 87.8)
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 #4B6DDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.017
- Neon Blue #4361EE ΔE 0.042
- Dark Periwinkle #665FD1 ΔE 0.047
- Cerulean Blue #056EEE ΔE 0.047
- Warm Blue #4B57DB ΔE 0.053
- Clear Blue #247AFD ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.060
- Windows Blue #3778BF ΔE 0.061
Use #4B6DDD 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.