#4B6DBF
Closest named color: French Blue (#436BAD). oklch(55% 0.134 265.3), rgb(75, 109, 191).
Aa
White text reads best on this color (4.95:1).
About this color
#4B6DBF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.134 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.030 away. White text reads best on it, at 4.95:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #4B6DBF |
| RGB | rgb(75, 109, 191) |
| HSL | hsl(222, 48%, 52%) |
| OKLCH | oklch(55% 0.134 265.3) |
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 #4B6DBF | 4.95:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #4B6DBF | 4.23:1 | AA large text | Lc 30.0 | Non-text elements, placeholder text |
| #4B6DBF text on white | 4.95:1 | AA | Lc 74.1 | Content text, not long reading |
| #4B6DBF text on black | 4.23:1 | AA large text | Lc -27.6 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CED9F0
oklch(88.4% 0.034 265.2)
-
Step 300
300
#AEC1E8
oklch(81% 0.059 264.6)
-
Step 400
400
#849FDD
oklch(70.6% 0.096 265.9)
-
Step 500
500
#6587D4
oklch(63.2% 0.123 265)
-
Step 600
600 (this color)
#4B6DBF
oklch(55% 0.134 265.3)
-
Step 700
700
#3E5CA7
oklch(49% 0.125 265.6)
-
Step 800
800
#334C87
oklch(42.7% 0.103 265.1)
-
Step 900
900
#2D406C
oklch(37.8% 0.079 265.2)
-
Step 950
950
#1A253F
oklch(26.8% 0.051 265.7)
#4B6DBF 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) | #4876C2 | 0.024 |
| Deuteranopia (no green cones) | #376BBD | 0.022 |
| Tritanopia (no blue cones) | #007F8D | 0.114 |
| Achromatopsia (no color) | #707070 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6DBF
#4B6DBF
oklch(55% 0.134 265.3)
- #8F6B00
#8F6B00
oklch(54.9% 0.112 85.2)
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 #4B6DBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.030
- Windows Blue #3778BF ΔE 0.033
- Mid Blue #276AB3 ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.046
- Royal Blue #4169E1 ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.057
- Muted Blue #3B719F ΔE 0.058
- Nice Blue #107AB0 ΔE 0.059
Use #4B6DBF 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.