#436AAD
Closest named color: French Blue (#436BAD). oklch(52.8% 0.115 260.6), rgb(67, 106, 173).
Aa
White text reads best on this color (5.37:1).
About this color
#436AAD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.115 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.003 away. White text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #436AAD |
| RGB | rgb(67, 106, 173) |
| HSL | hsl(218, 44%, 47%) |
| OKLCH | oklch(52.8% 0.115 260.6) |
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 #436AAD | 5.37:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #436AAD | 3.90:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #436AAD text on white | 5.37:1 | AA | Lc 76.6 | Fine for body text |
| #436AAD text on black | 3.90:1 | AA large text | Lc -25.1 | 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 600.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#AEC2E3
oklch(81% 0.052 260.4)
-
Step 400
400
#83A1D5
oklch(70.6% 0.084 261.2)
-
Step 500
500
#6489C9
oklch(63% 0.106 260.9)
-
Step 600
600 (this color)
#436AAD
oklch(52.8% 0.115 260.6)
-
Step 700
700
#3C609D
oklch(49.2% 0.107 260.4)
-
Step 800
800
#324E7F
oklch(42.6% 0.089 260.9)
-
Step 900
900
#2C4166
oklch(37.6% 0.069 261.2)
-
Step 950
950
#1A263C
oklch(26.9% 0.045 261.9)
#436AAD 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) | #4D70B0 | 0.022 |
| Deuteranopia (no green cones) | #3F66AC | 0.013 |
| Tritanopia (no blue cones) | #007983 | 0.098 |
| Achromatopsia (no color) | #6A6A6A | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436AAD
#436AAD
oklch(52.8% 0.115 260.6)
- #8B6300
#8B6300
oklch(52.8% 0.109 80.9)
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 #436AAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.003
- Mid Blue #276AB3 ΔE 0.025
- Flat Blue #3C73A8 ΔE 0.029
- Muted Blue #3B719F ΔE 0.034
- Windows Blue #3778BF ΔE 0.043
- Dusky Blue #475F94 ΔE 0.045
- Dull Blue #49759C ΔE 0.047
- Nice Blue #107AB0 ΔE 0.050
Use #436AAD 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.