#39648E
Closest named color: Denim (#3B638C). oklch(49.1% 0.083 249.3), rgb(57, 100, 142).
Aa
White text reads best on this color (6.19:1).
About this color
#39648E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.083 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.004 away. White text reads best on it, at 6.19:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.38:1 |
| White text | 6.19:1 |
Values
| HEX | #39648E |
| RGB | rgb(57, 100, 142) |
| HSL | hsl(210, 43%, 39%) |
| OKLCH | oklch(49.1% 0.083 249.3) |
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 #39648E | 6.19:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #39648E | 3.38:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #39648E text on white | 6.19:1 | AA | Lc 80.8 | Fine for body text |
| #39648E text on black | 3.38:1 | AA large text | Lc -21.1 | 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 700.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE8
oklch(88.6% 0.023 248.1)
-
Step 300
300
#ADC3DA
oklch(80.8% 0.041 249.5)
-
Step 400
400
#82A4C8
oklch(70.6% 0.065 250.2)
-
Step 500
500
#628EB9
oklch(63.2% 0.081 248.7)
-
Step 600
600
#4877A6
oklch(55.6% 0.09 249.7)
-
Step 700
700 (this color)
#39648E
oklch(49.1% 0.083 249.3)
-
Step 800
800
#305273
oklch(42.8% 0.068 249)
-
Step 900
900
#2A445D
oklch(37.7% 0.054 248.5)
-
Step 950
950
#192836
oklch(27% 0.033 247.4)
#39648E 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) | #526690 | 0.031 |
| Deuteranopia (no green cones) | #475D8D | 0.024 |
| Tritanopia (no blue cones) | #006E73 | 0.069 |
| Achromatopsia (no color) | #616161 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39648E
#39648E
oklch(49.1% 0.083 249.3)
- #7F5727
#7F5727
oklch(49% 0.083 68.6)
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 #39648E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.004
- Dusky Blue #475F94 ΔE 0.024
- Denim Blue #3B5B92 ΔE 0.029
- Peacock Blue #016795 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.034
- YInMn Blue #415A77 ΔE 0.041
- Muted Blue #3B719F ΔE 0.042
- Ocean Blue #03719C ΔE 0.044
Use #39648E 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.