#455573
Closest named color: YInMn Blue (#415A77). oklch(44.9% 0.053 262.7), rgb(69, 85, 115).
Aa
White text reads best on this color (7.49:1).
About this color
#455573 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.053 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.015 away. White text reads best on it, at 7.49:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #455573 |
| RGB | rgb(69, 85, 115) |
| HSL | hsl(219, 25%, 36%) |
| OKLCH | oklch(44.9% 0.053 262.7) |
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 #455573 | 7.49:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #455573 | 2.80:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #455573 text on white | 7.49:1 | AAA | Lc 86.0 | Fine for body text |
| #455573 text on black | 2.80:1 | Fails | Lc -16.0 | 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 800.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D3D9E5
oklch(88.4% 0.018 264.5)
-
Step 300
300
#B6C1D5
oklch(80.9% 0.031 262.5)
-
Step 400
400
#90A1C1
oklch(70.7% 0.051 263)
-
Step 500
500
#758AB1
oklch(63.2% 0.064 262.6)
-
Step 600
600
#5D739C
oklch(55.5% 0.069 262.5)
-
Step 700
700
#4D6186
oklch(49.2% 0.065 262.3)
-
Step 800
800 (this color)
#455573
oklch(44.9% 0.053 262.7)
-
Step 900
900
#364258
oklch(37.8% 0.041 262.3)
-
Step 950
950
#202734
oklch(27.2% 0.026 262.6)
#455573 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) | #4B5774 | 0.011 |
| Deuteranopia (no green cones) | #465372 | 0.006 |
| Tritanopia (no blue cones) | #365B5F | 0.048 |
| Achromatopsia (no color) | #555555 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455573
#455573
oklch(44.9% 0.053 262.7)
- #645231
#645231
oklch(44.9% 0.054 81.8)
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 #455573, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.015
- Dusty Grape #545775 ΔE 0.024
- Dusk #4E5481 ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.040
- Twilight #4E518B ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.050
- Denim #3B638C ΔE 0.050
- Slate #516572 ΔE 0.055
Use #455573 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.