#445F81
Closest named color: Denim (#3B638C). oklch(47.9% 0.064 254.6), rgb(68, 95, 129).
Aa
White text reads best on this color (6.56:1).
About this color
#445F81 is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.064 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.020 away. White text reads best on it, at 6.56:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.19:1 |
| White text | 6.56:1 |
Values
| HEX | #445F81 |
| RGB | rgb(68, 95, 129) |
| HSL | hsl(213, 31%, 39%) |
| OKLCH | oklch(47.9% 0.064 254.6) |
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 #445F81 | 6.56:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #445F81 | 3.19:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #445F81 text on white | 6.56:1 | AA | Lc 82.4 | Fine for body text |
| #445F81 text on black | 3.19:1 | AA large text | Lc -19.5 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE5
oklch(88.6% 0.017 256.3)
-
Step 300
300
#B3C2D5
oklch(80.9% 0.032 254.3)
-
Step 400
400
#8CA3C0
oklch(70.8% 0.05 254.4)
-
Step 500
500
#6F8CB0
oklch(63.2% 0.064 254.1)
-
Step 600
600
#57759B
oklch(55.5% 0.069 254.7)
-
Step 700
700 (this color)
#445F81
oklch(47.9% 0.064 254.6)
-
Step 800
800
#3B506C
oklch(42.6% 0.054 255.8)
-
Step 900
900
#324357
oklch(37.7% 0.041 252.9)
-
Step 950
950
#1E2733
oklch(27% 0.026 255.7)
#445F81 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) | #526183 | 0.020 |
| Deuteranopia (no green cones) | #4B5B80 | 0.014 |
| Tritanopia (no blue cones) | #2B676B | 0.057 |
| Achromatopsia (no color) | #5D5D5D | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #445F81
#445F81
oklch(47.9% 0.064 254.6)
- #735832
#735832
oklch(47.9% 0.065 74.7)
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 #445F81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.020
- YInMn Blue #415A77 ΔE 0.020
- Dusty Grape #545775 ΔE 0.031
- Dusky Blue #475F94 ΔE 0.032
- Light Navy Blue #2E5A88 ΔE 0.033
- Dusk #4E5481 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.035
- Slate #516572 ΔE 0.039
Use #445F81 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.