#3F6494
Closest named color: Denim (#3B638C). oklch(49.8% 0.088 255.5), rgb(63, 100, 148).
Aa
White text reads best on this color (6.06:1).
About this color
#3F6494 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.088 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.014 away. White text reads best on it, at 6.06:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #3F6494 |
| RGB | rgb(63, 100, 148) |
| HSL | hsl(214, 40%, 41%) |
| OKLCH | oklch(49.8% 0.088 255.5) |
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 #3F6494 | 6.06:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #3F6494 | 3.46:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #3F6494 text on white | 6.06:1 | AA | Lc 80.2 | Fine for body text |
| #3F6494 text on black | 3.46:1 | AA large text | Lc -21.7 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EAF2
oklch(93.5% 0.013 255.5)
-
Step 200
200
#CFDAE9
oklch(88.5% 0.024 256.1)
-
Step 300
300
#AFC2DC
oklch(80.8% 0.042 256.3)
-
Step 400
400
#84A3CB
oklch(70.7% 0.068 255)
-
Step 500
500
#658CBE
oklch(63.2% 0.087 255)
-
Step 600
600
#4C75AA
oklch(55.6% 0.095 255.3)
-
Step 700
700 (this color)
#3F6494
oklch(49.8% 0.088 255.5)
-
Step 800
800
#335076
oklch(42.6% 0.073 255.6)
-
Step 900
900
#2D435F
oklch(37.8% 0.056 254.9)
-
Step 950
950
#1A2738
oklch(26.9% 0.037 255.4)
#3F6494 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) | #506796 | 0.024 |
| Deuteranopia (no green cones) | #465F93 | 0.015 |
| Tritanopia (no blue cones) | #006F75 | 0.078 |
| Achromatopsia (no color) | #626262 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F6494
#3F6494
oklch(49.8% 0.088 255.5)
- #7F5B20
#7F5B20
oklch(49.8% 0.088 76.2)
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 #3F6494, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.014
- Dusky Blue #475F94 ΔE 0.016
- Denim Blue #3B5B92 ΔE 0.027
- Peacock Blue #016795 ΔE 0.037
- Muted Blue #3B719F ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.040
- French Blue #436BAD ΔE 0.042
- Ocean Blue #03719C ΔE 0.045
Use #3F6494 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.