#4E71B5
Closest named color: French Blue (#436BAD). oklch(55.4% 0.114 262.6), rgb(78, 113, 181).
Aa
White text reads best on this color (4.82:1).
About this color
#4E71B5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.114 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.025 away. White text reads best on it, at 4.82:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #4E71B5 |
| RGB | rgb(78, 113, 181) |
| HSL | hsl(220, 41%, 51%) |
| OKLCH | oklch(55.4% 0.114 262.6) |
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 #4E71B5 | 4.82:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #4E71B5 | 4.35:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #4E71B5 text on white | 4.82:1 | AA | Lc 73.3 | Content text, not long reading |
| #4E71B5 text on black | 4.35:1 | AA large text | Lc -28.4 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#CFDAED
oklch(88.6% 0.029 261.5)
-
Step 300
300
#AFC1E3
oklch(80.9% 0.052 263.1)
-
Step 400
400
#85A1D4
oklch(70.7% 0.081 262.2)
-
Step 500
500
#6789C9
oklch(63.2% 0.104 262.4)
-
Step 600
600 (this color)
#4E71B5
oklch(55.4% 0.114 262.6)
-
Step 700
700
#3F5F9C
oklch(49.1% 0.105 262.3)
-
Step 800
800
#344E7F
oklch(42.8% 0.088 262.1)
-
Step 900
900
#2E4166
oklch(37.7% 0.068 262.8)
-
Step 950
950
#1B263C
oklch(27% 0.044 263.4)
#4E71B5 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) | #5577B8 | 0.020 |
| Deuteranopia (no green cones) | #486DB4 | 0.014 |
| Tritanopia (no blue cones) | #01808A | 0.102 |
| Achromatopsia (no color) | #727272 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E71B5
#4E71B5
oklch(55.4% 0.114 262.6)
- #936B01
#936B01
oklch(55.4% 0.114 82.6)
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 #4E71B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.025
- Windows Blue #3778BF ΔE 0.028
- Flat Blue #3C73A8 ΔE 0.030
- Muted Blue #3B719F ΔE 0.042
- Mid Blue #276AB3 ΔE 0.044
- Dull Blue #49759C ΔE 0.045
- Nice Blue #107AB0 ΔE 0.048
- Steel Blue #4682B4 ΔE 0.048
Use #4E71B5 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.