#45639F
Closest named color: Dusky Blue (#475F94). oklch(50.5% 0.102 263.1), rgb(69, 99, 159).
Aa
White text reads best on this color (5.93:1).
About this color
#45639F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.102 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.019 away. White text reads best on it, at 5.93:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.53:1 |
| White text | 5.93:1 |
Values
| HEX | #45639F |
| RGB | rgb(69, 99, 159) |
| HSL | hsl(220, 39%, 45%) |
| OKLCH | oklch(50.5% 0.102 263.1) |
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 #45639F | 5.93:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #45639F | 3.53:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #45639F text on white | 5.93:1 | AA | Lc 79.5 | Fine for body text |
| #45639F text on black | 3.53:1 | AA large text | Lc -22.3 | 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
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D0DAEC
oklch(88.6% 0.027 262.3)
-
Step 300
300
#B0C1E1
oklch(80.9% 0.049 263.1)
-
Step 400
400
#87A1D3
oklch(70.8% 0.079 263.2)
-
Step 500
500
#6989C7
oklch(63.2% 0.101 262.9)
-
Step 600
600
#5172B4
oklch(55.7% 0.11 263.1)
-
Step 700
700 (this color)
#45639F
oklch(50.5% 0.102 263.1)
-
Step 800
800
#364E7D
oklch(42.7% 0.084 262.8)
-
Step 900
900
#2F4165
oklch(37.8% 0.066 263.3)
-
Step 950
950
#1C263B
oklch(27% 0.042 264.3)
#45639F 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) | #4A68A1 | 0.016 |
| Deuteranopia (no green cones) | #3F609E | 0.012 |
| Tritanopia (no blue cones) | #0A7079 | 0.092 |
| Achromatopsia (no color) | #646464 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45639F
#45639F
oklch(50.5% 0.102 263.1)
- #815E04
#815E04
oklch(50.5% 0.102 82.8)
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 #45639F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.019
- French Blue #436BAD ΔE 0.028
- Denim Blue #3B5B92 ΔE 0.032
- Denim #3B638C ΔE 0.034
- Mid Blue #276AB3 ΔE 0.040
- Muted Blue #3B719F ΔE 0.041
- Flat Blue #3C73A8 ΔE 0.045
- Peacock Blue #016795 ΔE 0.049
Use #45639F 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.