#4B6FDA
Closest named color: Royal Blue (#4169E1). oklch(57.2% 0.169 267), rgb(75, 111, 218).
Aa
Black text reads best on this color (4.58:1).
About this color
#4B6FDA is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.169 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.023 away. Black text reads best on it, at 4.58:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #4B6FDA |
| RGB | rgb(75, 111, 218) |
| HSL | hsl(225, 66%, 57%) |
| OKLCH | oklch(57.2% 0.169 267) |
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 #4B6FDA | 4.57:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #4B6FDA | 4.58:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #4B6FDA text on white | 4.57:1 | AA | Lc 71.5 | Content text, not long reading |
| #4B6FDA text on black | 4.58:1 | AA | Lc -30.2 | Non-text elements, placeholder text |
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
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CDD9F6
oklch(88.5% 0.042 267.7)
-
Step 300
300
#ABC0F3
oklch(81% 0.076 267.3)
-
Step 400
400
#7E9DED
oklch(70.6% 0.123 267.1)
-
Step 500
500
#5F83E7
oklch(63.1% 0.156 267)
-
Step 600
600 (this color)
#4B6FDA
oklch(57.2% 0.169 267)
-
Step 700
700
#3958B8
oklch(49.1% 0.156 267)
-
Step 800
800
#2F4895
oklch(42.6% 0.13 267.2)
-
Step 900
900
#293D77
oklch(37.6% 0.102 267.1)
-
Step 950
950
#182446
oklch(26.9% 0.065 267.3)
#4B6FDA 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) | #347CDE | 0.035 |
| Deuteranopia (no green cones) | #096FD8 | 0.042 |
| Tritanopia (no blue cones) | #00889A | 0.140 |
| Achromatopsia (no color) | #757575 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6FDA
#4B6FDA
oklch(57.2% 0.169 267)
- #957200
#957200
oklch(57.1% 0.117 87.2)
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 #4B6FDA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.023
- Dark Periwinkle #665FD1 ΔE 0.049
- Neon Blue #4361EE ΔE 0.049
- Cerulean Blue #056EEE ΔE 0.051
- Windows Blue #3778BF ΔE 0.054
- Warm Blue #4B57DB ΔE 0.058
- Clear Blue #247AFD ΔE 0.060
- Slate Blue #6A5ACD ΔE 0.062
Use #4B6FDA 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.