#475BB3
Closest named color: French Blue (#436BAD). oklch(50.2% 0.141 270.9), rgb(71, 91, 179).
Aa
White text reads best on this color (6.14:1).
About this color
#475BB3 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.141 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.046 away. White text reads best on it, at 6.14:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #475BB3 |
| RGB | rgb(71, 91, 179) |
| HSL | hsl(229, 43%, 49%) |
| OKLCH | oklch(50.2% 0.141 270.9) |
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 #475BB3 | 6.14:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #475BB3 | 3.41:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #475BB3 text on white | 6.14:1 | AA | Lc 80.4 | Fine for body text |
| #475BB3 text on black | 3.41:1 | AA large text | Lc -21.4 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B0BFEE
oklch(80.9% 0.069 271)
-
Step 400
400
#879DE5
oklch(70.8% 0.109 270.5)
-
Step 500
500
#6B82DD
oklch(63% 0.139 271.2)
-
Step 600
600
#546ACB
oklch(55.6% 0.151 271.1)
-
Step 700
700 (this color)
#475BB3
oklch(50.2% 0.141 270.9)
-
Step 800
800
#38488E
oklch(42.6% 0.117 271)
-
Step 900
900
#303D71
oklch(37.6% 0.09 271)
-
Step 950
950
#1C2442
oklch(26.9% 0.057 270.9)
#475BB3 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) | #2E66B6 | 0.035 |
| Deuteranopia (no green cones) | #1A5DB1 | 0.040 |
| Tritanopia (no blue cones) | #006F7E | 0.123 |
| Achromatopsia (no color) | #616161 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475BB3
#475BB3
oklch(50.2% 0.141 270.9)
- #7A6100
#7A6100
oklch(50.3% 0.103 91.1)
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 #475BB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.046
- Mid Blue #276AB3 ΔE 0.046
- Iris #6258C4 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.056
- Warm Blue #4B57DB ΔE 0.064
- Slate Blue #6A5ACD ΔE 0.065
- Dark Periwinkle #665FD1 ΔE 0.066
Use #475BB3 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.