#4B6ABB
Closest named color: French Blue (#436BAD). oklch(54.1% 0.132 266.3), rgb(75, 106, 187).
Aa
White text reads best on this color (5.14:1).
About this color
#4B6ABB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.132 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.025 away. White text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.07:1 |
| White text | 5.14:1 |
Values
| HEX | #4B6ABB |
| RGB | rgb(75, 106, 187) |
| HSL | hsl(223, 45%, 51%) |
| OKLCH | oklch(54.1% 0.132 266.3) |
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 #4B6ABB | 5.14:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #4B6ABB | 4.07:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #4B6ABB text on white | 5.14:1 | AA | Lc 75.3 | Fine for body text |
| #4B6ABB text on black | 4.07:1 | AA large text | Lc -26.5 | 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
#CFD9F0
oklch(88.5% 0.033 266.9)
-
Step 300
300
#AFC0E8
oklch(80.8% 0.06 267)
-
Step 400
400
#859FDC
oklch(70.6% 0.095 266.3)
-
Step 500
500
#6786D3
oklch(63% 0.122 266.4)
-
Step 600
600 (this color)
#4B6ABB
oklch(54.1% 0.132 266.3)
-
Step 700
700
#405CA6
oklch(49.1% 0.123 266.4)
-
Step 800
800
#354C86
oklch(42.8% 0.1 266)
-
Step 900
900
#2E3F6C
oklch(37.6% 0.08 266.9)
-
Step 950
950
#1B253F
oklch(26.9% 0.051 267)
#4B6ABB 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) | #4673BE | 0.024 |
| Deuteranopia (no green cones) | #3669B9 | 0.023 |
| Tritanopia (no blue cones) | #007C89 | 0.115 |
| Achromatopsia (no color) | #6D6D6D | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6ABB
#4B6ABB
oklch(54.1% 0.132 266.3)
- #8B6900
#8B6900
oklch(54% 0.111 86.2)
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 #4B6ABB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.025
- Mid Blue #276AB3 ΔE 0.036
- Windows Blue #3778BF ΔE 0.039
- Flat Blue #3C73A8 ΔE 0.045
- Muted Blue #3B719F ΔE 0.055
- Iris #6258C4 ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.057
- Royal Blue #4169E1 ΔE 0.060
Use #4B6ABB 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.