#436EAD
Closest named color: French Blue (#436BAD). oklch(53.7% 0.11 257.9), rgb(67, 110, 173).
Aa
White text reads best on this color (5.15:1).
About this color
#436EAD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.110 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.009 away. White text reads best on it, at 5.15:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #436EAD |
| RGB | rgb(67, 110, 173) |
| HSL | hsl(216, 44%, 47%) |
| OKLCH | oklch(53.7% 0.11 257.9) |
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 #436EAD | 5.15:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #436EAD | 4.07:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #436EAD text on white | 5.15:1 | AA | Lc 75.3 | Fine for body text |
| #436EAD text on black | 4.07:1 | AA large text | Lc -26.4 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#ADC2E1
oklch(80.8% 0.05 258)
-
Step 400
400
#82A2D2
oklch(70.6% 0.079 258.3)
-
Step 500
500
#628BC7
oklch(63.2% 0.102 257.8)
-
Step 600
600 (this color)
#436EAD
oklch(53.7% 0.11 257.9)
-
Step 700
700
#3A619A
oklch(49.1% 0.102 257.8)
-
Step 800
800
#304F7D
oklch(42.6% 0.085 258.1)
-
Step 900
900
#2B4264
oklch(37.7% 0.065 258)
-
Step 950
950
#19273B
oklch(27% 0.042 257.3)
#436EAD 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) | #5373B0 | 0.025 |
| Deuteranopia (no green cones) | #4569AC | 0.014 |
| Tritanopia (no blue cones) | #007C85 | 0.093 |
| Achromatopsia (no color) | #6D6D6D | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436EAD
#436EAD
oklch(53.7% 0.11 257.9)
- #916405
#916405
oklch(53.7% 0.111 77.4)
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 #436EAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.009
- Flat Blue #3C73A8 ΔE 0.019
- Muted Blue #3B719F ΔE 0.027
- Mid Blue #276AB3 ΔE 0.030
- Windows Blue #3778BF ΔE 0.035
- Dull Blue #49759C ΔE 0.038
- Nice Blue #107AB0 ΔE 0.042
- Ocean Blue #03719C ΔE 0.049
Use #436EAD 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.