#48639B
Closest named color: Dusky Blue (#475F94). oklch(50.4% 0.095 263.8), rgb(72, 99, 155).
Aa
White text reads best on this color (5.94:1).
About this color
#48639B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.095 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.015 away. White text reads best on it, at 5.94:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.53:1 |
| White text | 5.94:1 |
Values
| HEX | #48639B |
| RGB | rgb(72, 99, 155) |
| HSL | hsl(220, 37%, 45%) |
| OKLCH | oklch(50.4% 0.095 263.8) |
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 #48639B | 5.94:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #48639B | 3.53:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #48639B text on white | 5.94:1 | AA | Lc 79.6 | Fine for body text |
| #48639B text on black | 3.53:1 | AA large text | Lc -22.2 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0D9EB
oklch(88.4% 0.027 264.4)
-
Step 300
300
#B1C1DF
oklch(80.9% 0.046 263)
-
Step 400
400
#89A1CF
oklch(70.8% 0.073 263.2)
-
Step 500
500
#6C89C3
oklch(63.2% 0.094 263.6)
-
Step 600
600
#5472AF
oklch(55.6% 0.102 263.5)
-
Step 700
700 (this color)
#48639B
oklch(50.4% 0.095 263.8)
-
Step 800
800
#384E7A
oklch(42.7% 0.078 263.3)
-
Step 900
900
#314162
oklch(37.7% 0.061 264)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#48639B 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) | #4D689D | 0.016 |
| Deuteranopia (no green cones) | #43609A | 0.011 |
| Tritanopia (no blue cones) | #1E6F78 | 0.085 |
| Achromatopsia (no color) | #646464 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #48639B
#48639B
oklch(50.4% 0.095 263.8)
- #7E5F15
#7E5F15
oklch(50.4% 0.095 84)
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 #48639B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.015
- Denim #3B638C ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.032
- French Blue #436BAD ΔE 0.032
- Muted Blue #3B719F ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.046
- Mid Blue #276AB3 ΔE 0.046
- Peacock Blue #016795 ΔE 0.050
Use #48639B 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.