#3E63A9
Closest named color: French Blue (#436BAD). oklch(50.7% 0.119 262), rgb(62, 99, 169).
Aa
White text reads best on this color (5.89:1).
About this color
#3E63A9 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.119 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.024 away. White text reads best on it, at 5.89:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.56:1 |
| White text | 5.89:1 |
Values
| HEX | #3E63A9 |
| RGB | rgb(62, 99, 169) |
| HSL | hsl(219, 46%, 45%) |
| OKLCH | oklch(50.7% 0.119 262) |
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 #3E63A9 | 5.89:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #3E63A9 | 3.56:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #3E63A9 text on white | 5.89:1 | AA | Lc 79.3 | Fine for body text |
| #3E63A9 text on black | 3.56:1 | AA large text | Lc -22.5 | 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 700.
-
Step 50
50
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ACC1E7
oklch(80.8% 0.059 262.3)
-
Step 400
400
#81A1DB
oklch(70.8% 0.093 262)
-
Step 500
500
#6188D1
oklch(63% 0.119 262.1)
-
Step 600
600
#4871BE
oklch(55.6% 0.129 261.9)
-
Step 700
700 (this color)
#3E63A9
oklch(50.7% 0.119 262)
-
Step 800
800
#304D85
oklch(42.7% 0.1 262.3)
-
Step 900
900
#2A416A
oklch(37.7% 0.076 261.3)
-
Step 950
950
#19263E
oklch(27% 0.049 262)
#3E63A9 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) | #446AAC | 0.022 |
| Deuteranopia (no green cones) | #3460A8 | 0.014 |
| Tritanopia (no blue cones) | #00737E | 0.100 |
| Achromatopsia (no color) | #646464 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E63A9
#3E63A9
oklch(50.7% 0.119 262)
- #835E00
#835E00
oklch(50.7% 0.105 81.7)
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 #3E63A9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.024
- Mid Blue #276AB3 ΔE 0.027
- Dusky Blue #475F94 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.041
- Flat Blue #3C73A8 ΔE 0.046
- Muted Blue #3B719F ΔE 0.047
- Denim #3B638C ΔE 0.048
- Peacock Blue #016795 ΔE 0.053
Use #3E63A9 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.