#0475BA
Closest named color: Nice Blue (#107AB0). oklch(54.4% 0.137 245.6), rgb(4, 117, 186).
Aa
White text reads best on this color (4.93:1).
About this color
#0475BA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.137 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.024 away. White text reads best on it, at 4.93:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #0475BA |
| RGB | rgb(4, 117, 186) |
| HSL | hsl(203, 96%, 37%) |
| OKLCH | oklch(54.4% 0.137 245.6) |
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 #0475BA | 4.93:1 | AA | Lc -78.9 | Fine for body text |
| Black text on #0475BA | 4.25:1 | AA large text | Lc 30.6 | Non-text elements, placeholder text |
| #0475BA text on white | 4.93:1 | AA | Lc 73.5 | Content text, not long reading |
| #0475BA text on black | 4.25:1 | AA large text | Lc -28.2 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF5
oklch(93.5% 0.018 245.4)
-
Step 200
200
#C7DCEF
oklch(88.5% 0.035 245.5)
-
Step 300
300
#A0C5E7
oklch(80.8% 0.062 246.4)
-
Step 400
400
#6AA7DB
oklch(70.8% 0.099 245.5)
-
Step 500
500
#3D90D1
oklch(63.2% 0.126 245.5)
-
Step 600
600 (this color)
#0475BA
oklch(54.4% 0.137 245.6)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#065385
oklch(42.8% 0.106 245.6)
-
Step 900
900
#13456A
oklch(37.7% 0.082 245.2)
-
Step 950
950
#0D293E
oklch(27.1% 0.052 244.2)
#0475BA 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) | #5378BD | 0.053 |
| Deuteranopia (no green cones) | #396AB9 | 0.036 |
| Tritanopia (no blue cones) | #00868E | 0.097 |
| Achromatopsia (no color) | #707070 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0475BA
#0475BA
oklch(54.4% 0.137 245.6)
- #9F5F00
#9F5F00
oklch(54.5% 0.122 65.8)
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 #0475BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.024
- Windows Blue #3778BF ΔE 0.028
- Mid Blue #276AB3 ΔE 0.031
- Flat Blue #3C73A8 ΔE 0.037
- French Blue #436BAD ΔE 0.042
- Muted Blue #3B719F ΔE 0.046
- Ocean Blue #03719C ΔE 0.047
- Water Blue #0E87CC ΔE 0.055
Use #0475BA 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.