#475BCE
Closest named color: Warm Blue (#4B57DB). oklch(52.1% 0.178 271.4), rgb(71, 91, 206).
Aa
White text reads best on this color (5.74:1).
About this color
#475BCE is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.178 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.023 away. White text reads best on it, at 5.74:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #475BCE |
| RGB | rgb(71, 91, 206) |
| HSL | hsl(231, 58%, 54%) |
| OKLCH | oklch(52.1% 0.178 271.4) |
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 #475BCE | 5.74:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #475BCE | 3.65:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #475BCE text on white | 5.74:1 | AA | Lc 78.3 | Fine for body text |
| #475BCE text on black | 3.65:1 | AA large text | Lc -23.5 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CDD8FA
oklch(88.5% 0.048 271.2)
-
Step 300
300
#ACBEF9
oklch(80.9% 0.086 271.2)
-
Step 400
400
#829AF6
oklch(70.7% 0.137 271.4)
-
Step 500
500
#647EF3
oklch(63.2% 0.177 271.1)
-
Step 600
600
#4E63E1
oklch(55.5% 0.192 271.5)
-
Step 700
700 (this color)
#475BCE
oklch(52.1% 0.178 271.4)
-
Step 800
800
#34449E
oklch(42.8% 0.147 271.2)
-
Step 900
900
#2D3A7E
oklch(37.7% 0.116 271.6)
-
Step 950
950
#1A234A
oklch(27.1% 0.073 271.1)
#475BCE 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) | #006CD2 | 0.054 |
| Deuteranopia (no green cones) | #0060CC | 0.046 |
| Tritanopia (no blue cones) | #00778B | 0.149 |
| Achromatopsia (no color) | #666666 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475BCE
#475BCE
oklch(52.1% 0.178 271.4)
- #806600
#806600
oklch(52.1% 0.107 91.2)
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 #475BCE, closest first.
No curated palette has a color within ΔE 0.04 of #475BCE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.023
- Iris #6258C4 ΔE 0.040
- Royal Blue #4169E1 ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.045
- Slate Blue #6A5ACD ΔE 0.049
- Neon Blue #4361EE ΔE 0.050
- Light Indigo #6D5ACF ΔE 0.054
- Azul #1D5DEC ΔE 0.056
Use #475BCE 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.