#475AB4
Closest named color: Iris (#6258C4). oklch(50% 0.144 271.4), rgb(71, 90, 180).
Aa
White text reads best on this color (6.19:1).
About this color
#475AB4 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.144 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.046 away. White text reads best on it, at 6.19:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.38:1 |
| White text | 6.19:1 |
Values
| HEX | #475AB4 |
| RGB | rgb(71, 90, 180) |
| HSL | hsl(230, 43%, 49%) |
| OKLCH | oklch(50% 0.144 271.4) |
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 #475AB4 | 6.19:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #475AB4 | 3.38:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #475AB4 text on white | 6.19:1 | AA | Lc 80.6 | Fine for body text |
| #475AB4 text on black | 3.38:1 | AA large text | Lc -21.2 | 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 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
#879CE6
oklch(70.6% 0.111 271.2)
-
Step 500
500
#6B82DF
oklch(63.1% 0.142 271.4)
-
Step 600
600
#5469CC
oklch(55.5% 0.154 271.5)
-
Step 700
700 (this color)
#475AB4
oklch(50% 0.144 271.4)
-
Step 800
800
#38488F
oklch(42.7% 0.118 271.1)
-
Step 900
900
#303D72
oklch(37.7% 0.092 271.1)
-
Step 950
950
#1C2443
oklch(27% 0.059 271.1)
#475AB4 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) | #2B66B7 | 0.038 |
| Deuteranopia (no green cones) | #145CB2 | 0.044 |
| Tritanopia (no blue cones) | #006F7E | 0.126 |
| Achromatopsia (no color) | #616161 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475AB4
#475AB4
oklch(50% 0.144 271.4)
- #796000
#796000
oklch(50% 0.102 90.9)
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 #475AB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.046
- Mid Blue #276AB3 ΔE 0.049
- French Blue #436BAD ΔE 0.049
- Dusky Blue #475F94 ΔE 0.056
- Denim Blue #3B5B92 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.062
- Slate Blue #6A5ACD ΔE 0.064
- Dark Periwinkle #665FD1 ΔE 0.065
Use #475AB4 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.