#475FEF
Closest named color: Neon Blue (#4361EE). oklch(55.5% 0.217 270.4), rgb(71, 95, 239).
Aa
White text reads best on this color (5.05:1).
About this color
#475FEF is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.217 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.006 away. White text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.217) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #475FEF |
| RGB | rgb(71, 95, 239) |
| HSL | hsl(231, 84%, 61%) |
| OKLCH | oklch(55.5% 0.217 270.4) |
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 #475FEF | 5.05:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #475FEF | 4.15:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #475FEF text on white | 5.05:1 | AA | Lc 74.4 | Content text, not long reading |
| #475FEF text on black | 4.15:1 | AA large text | Lc -27.4 | 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 600.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FD
oklch(93.5% 0.028 270.4)
-
Step 200
200
#CBD8FE
oklch(88.5% 0.054 270.4)
-
Step 300
300
#A9BEFF
oklch(80.9% 0.095 270.4)
-
Step 400
400
#7D99FF
oklch(70.7% 0.152 270.5)
-
Step 500
500
#5E7BFF
oklch(63.1% 0.198 270.4)
-
Step 600
600 (this color)
#475FEF
oklch(55.5% 0.217 270.4)
-
Step 700
700
#3A4DD0
oklch(49% 0.201 270.6)
-
Step 800
800
#2F40A8
oklch(42.6% 0.167 270.4)
-
Step 900
900
#293885
oklch(37.6% 0.13 270.6)
-
Step 950
950
#18224E
oklch(27.1% 0.082 270.4)
#475FEF 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) | #0077F4 | 0.061 |
| Deuteranopia (no green cones) | #0067EC | 0.042 |
| Tritanopia (no blue cones) | #00849E | 0.174 |
| Achromatopsia (no color) | #6F6F6F | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #475FEF
#475FEF
oklch(55.5% 0.217 270.4)
- #8C6F00
#8C6F00
oklch(55.4% 0.113 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 #475FEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.006
- Royal Blue #4169E1 ΔE 0.032
- Warm Blue #4B57DB ΔE 0.035
- Azul #1D5DEC ΔE 0.037
- Bright Blue #0165FC ΔE 0.044
- Cerulean Blue #056EEE ΔE 0.046
- Electric Blue #0652FF ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.061
Use #475FEF 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.