#4B61B3
Closest named color: French Blue (#436BAD). oklch(51.7% 0.132 270), rgb(75, 97, 179).
Aa
White text reads best on this color (5.73:1).
About this color
#4B61B3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.132 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.031 away. White text reads best on it, at 5.73:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.65:1 |
| White text | 5.73:1 |
Values
| HEX | #4B61B3 |
| RGB | rgb(75, 97, 179) |
| HSL | hsl(227, 41%, 50%) |
| OKLCH | oklch(51.7% 0.132 270) |
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 #4B61B3 | 5.73:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #4B61B3 | 3.65:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #4B61B3 text on white | 5.73:1 | AA | Lc 78.5 | Fine for body text |
| #4B61B3 text on black | 3.65:1 | AA large text | Lc -23.3 | 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 700.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#D0D9F1
oklch(88.6% 0.034 269.3)
-
Step 300
300
#B0BFEB
oklch(80.8% 0.065 270.2)
-
Step 400
400
#889DE1
oklch(70.7% 0.103 270.5)
-
Step 500
500
#6B84D8
oklch(63.2% 0.13 269.9)
-
Step 600
600
#546CC6
oklch(55.7% 0.142 270.1)
-
Step 700
700 (this color)
#4B61B3
oklch(51.7% 0.132 270)
-
Step 800
800
#38498A
oklch(42.6% 0.109 270.2)
-
Step 900
900
#303E6E
oklch(37.7% 0.084 269.8)
-
Step 950
950
#1C2541
oklch(27.1% 0.054 269.1)
#4B61B3 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) | #3B6BB6 | 0.029 |
| Deuteranopia (no green cones) | #2D62B1 | 0.031 |
| Tritanopia (no blue cones) | #007381 | 0.117 |
| Achromatopsia (no color) | #666666 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B61B3
#4B61B3
oklch(51.7% 0.132 270)
- #7F6400
#7F6400
oklch(51.6% 0.105 90.1)
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 #4B61B3, closest first.
No curated palette has a color within ΔE 0.04 of #4B61B3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.031
- Mid Blue #276AB3 ΔE 0.038
- Iris #6258C4 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.050
- Flat Blue #3C73A8 ΔE 0.057
- Denim Blue #3B5B92 ΔE 0.058
- Dark Periwinkle #665FD1 ΔE 0.061
- Muted Blue #3B719F ΔE 0.062
Use #4B61B3 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.