#3C619B
Closest named color: Dusky Blue (#475F94). oklch(49.3% 0.103 259.1), rgb(60, 97, 155).
Aa
White text reads best on this color (6.22:1).
About this color
#3C619B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.103 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.016 away. White text reads best on it, at 6.22:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.37:1 |
| White text | 6.22:1 |
Values
| HEX | #3C619B |
| RGB | rgb(60, 97, 155) |
| HSL | hsl(217, 44%, 42%) |
| OKLCH | oklch(49.3% 0.103 259.1) |
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 #3C619B | 6.22:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #3C619B | 3.37:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #3C619B text on white | 6.22:1 | AA | Lc 80.8 | Fine for body text |
| #3C619B text on black | 3.37:1 | AA large text | Lc -21.0 | 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
#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
#AEC2E1
oklch(80.9% 0.049 259.1)
-
Step 400
400
#83A2D2
oklch(70.7% 0.079 259)
-
Step 500
500
#638AC7
oklch(63% 0.102 259.1)
-
Step 600
600
#4A73B3
oklch(55.5% 0.11 259)
-
Step 700
700 (this color)
#3C619B
oklch(49.3% 0.103 259.1)
-
Step 800
800
#314F7D
oklch(42.7% 0.085 258.7)
-
Step 900
900
#2C4265
oklch(37.8% 0.066 259.4)
-
Step 950
950
#1A273B
oklch(27.1% 0.042 258.8)
#3C619B 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) | #48669D | 0.021 |
| Deuteranopia (no green cones) | #3C5D9A | 0.011 |
| Tritanopia (no blue cones) | #006E76 | 0.088 |
| Achromatopsia (no color) | #616161 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C619B
#3C619B
oklch(49.3% 0.103 259.1)
- #805900
#805900
oklch(49.3% 0.102 79)
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 #3C619B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.016
- Denim Blue #3B5B92 ΔE 0.021
- Denim #3B638C ΔE 0.027
- French Blue #436BAD ΔE 0.039
- Light Navy Blue #2E5A88 ΔE 0.039
- Peacock Blue #016795 ΔE 0.039
- Mid Blue #276AB3 ΔE 0.042
- Muted Blue #3B719F ΔE 0.046
Use #3C619B 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.