#475CB9
Closest named color: Iris (#6258C4). oklch(50.8% 0.148 270.7), rgb(71, 92, 185).
Aa
White text reads best on this color (6.00:1).
About this color
#475CB9 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.148 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.042 away. White text reads best on it, at 6.00:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.49:1 |
| White text | 6.00:1 |
Values
| HEX | #475CB9 |
| RGB | rgb(71, 92, 185) |
| HSL | hsl(229, 45%, 50%) |
| OKLCH | oklch(50.8% 0.148 270.7) |
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 #475CB9 | 6.00:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #475CB9 | 3.49:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #475CB9 text on white | 6.00:1 | AA | Lc 79.7 | Fine for body text |
| #475CB9 text on black | 3.49:1 | AA large text | Lc -22.1 | 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
#E4E9F8
oklch(93.5% 0.021 271.2)
-
Step 200
200
#CFD8F4
oklch(88.4% 0.04 271.4)
-
Step 300
300
#AFBFF0
oklch(80.9% 0.072 270.6)
-
Step 400
400
#869CE8
oklch(70.7% 0.114 270.9)
-
Step 500
500
#6982E1
oklch(63.1% 0.146 270.7)
-
Step 600
600
#5269CF
oklch(55.6% 0.159 270.9)
-
Step 700
700 (this color)
#475CB9
oklch(50.8% 0.148 270.7)
-
Step 800
800
#374891
oklch(42.8% 0.122 270.6)
-
Step 900
900
#2F3D74
oklch(37.8% 0.095 270.5)
-
Step 950
950
#1B2444
oklch(27% 0.061 270.1)
#475CB9 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) | #2A68BC | 0.038 |
| Deuteranopia (no green cones) | #0F5EB7 | 0.044 |
| Tritanopia (no blue cones) | #007182 | 0.126 |
| Achromatopsia (no color) | #636363 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475CB9
#475CB9
oklch(50.8% 0.148 270.7)
- #7C6200
#7C6200
oklch(50.8% 0.104 90.5)
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 #475CB9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.042
- Mid Blue #276AB3 ΔE 0.046
- French Blue #436BAD ΔE 0.048
- Warm Blue #4B57DB ΔE 0.055
- Dark Periwinkle #665FD1 ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.059
- Dusky Blue #475F94 ΔE 0.061
- Light Indigo #6D5ACF ΔE 0.065
Use #475CB9 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.