#4071B2
Closest named color: French Blue (#436BAD). oklch(54.5% 0.115 256.1), rgb(64, 113, 178).
Aa
White text reads best on this color (4.97:1).
About this color
#4071B2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.115 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.017 away. White text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.22:1 |
| White text | 4.97:1 |
Values
| HEX | #4071B2 |
| RGB | rgb(64, 113, 178) |
| HSL | hsl(214, 47%, 47%) |
| OKLCH | oklch(54.5% 0.115 256.1) |
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 #4071B2 | 4.97:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #4071B2 | 4.22:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #4071B2 text on white | 4.97:1 | AA | Lc 74.2 | Content text, not long reading |
| #4071B2 text on black | 4.22:1 | AA large text | Lc -27.5 | 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 600.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF4
oklch(93.5% 0.015 257.2)
-
Step 200
200
#CDDAEC
oklch(88.4% 0.029 256.5)
-
Step 300
300
#ABC3E2
oklch(80.9% 0.051 254.9)
-
Step 400
400
#7EA3D4
oklch(70.7% 0.083 255.6)
-
Step 500
500
#5D8BC9
oklch(63% 0.107 256.2)
-
Step 600
600 (this color)
#4071B2
oklch(54.5% 0.115 256.1)
-
Step 700
700
#35619C
oklch(49% 0.107 256.3)
-
Step 800
800
#2C507F
oklch(42.8% 0.089 255.8)
-
Step 900
900
#284266
oklch(37.6% 0.07 256.8)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#4071B2 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) | #5576B5 | 0.029 |
| Deuteranopia (no green cones) | #456BB1 | 0.017 |
| Tritanopia (no blue cones) | #008089 | 0.095 |
| Achromatopsia (no color) | #707070 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4071B2
#4071B2
oklch(54.5% 0.115 256.1)
- #966500
#966500
oklch(54.5% 0.115 75.7)
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 #4071B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.017
- Flat Blue #3C73A8 ΔE 0.019
- Windows Blue #3778BF ΔE 0.025
- Muted Blue #3B719F ΔE 0.031
- Mid Blue #276AB3 ΔE 0.031
- Nice Blue #107AB0 ΔE 0.036
- Dull Blue #49759C ΔE 0.040
- Steel Blue #4682B4 ΔE 0.050
Use #4071B2 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.