#445F89
Closest named color: Denim (#3B638C). oklch(48.3% 0.075 259), rgb(68, 95, 137).
Aa
White text reads best on this color (6.47:1).
About this color
#445F89 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.075 and its hue 259°. 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 6.47:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #445F89 |
| RGB | rgb(68, 95, 137) |
| HSL | hsl(217, 34%, 40%) |
| OKLCH | oklch(48.3% 0.075 259) |
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 #445F89 | 6.47:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #445F89 | 3.24:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #445F89 text on white | 6.47:1 | AA | Lc 82.0 | Fine for body text |
| #445F89 text on black | 3.24:1 | AA large text | Lc -19.9 | 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
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B3C2D9
oklch(81% 0.036 258.9)
-
Step 400
400
#8BA2C6
oklch(70.7% 0.059 259.3)
-
Step 500
500
#6E8BB7
oklch(63.2% 0.075 258.6)
-
Step 600
600
#5674A3
oklch(55.6% 0.082 259.1)
-
Step 700
700 (this color)
#445F89
oklch(48.3% 0.075 259)
-
Step 800
800
#3A5071
oklch(42.8% 0.062 258.3)
-
Step 900
900
#32425C
oklch(37.7% 0.049 259.9)
-
Step 950
950
#1D2736
oklch(27% 0.031 258.3)
#445F89 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) | #4F628B | 0.018 |
| Deuteranopia (no green cones) | #475B88 | 0.012 |
| Tritanopia (no blue cones) | #26686E | 0.067 |
| Achromatopsia (no color) | #5E5E5E | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445F89
#445F89
oklch(48.3% 0.075 259)
- #755928
#755928
oklch(48.2% 0.075 79.3)
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 #445F89, 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 0.019
- Denim Blue #3B5B92 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.030
- YInMn Blue #415A77 ΔE 0.031
- Dusk #4E5481 ΔE 0.033
- Dusty Grape #545775 ΔE 0.038
- Twilight #4E518B ΔE 0.042
Use #445F89 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.