#455780
Closest named color: Dusk (#4E5481). oklch(46% 0.071 265.6), rgb(69, 87, 128).
Aa
White text reads best on this color (7.17:1).
About this color
#455780 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.071 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.015 away. White text reads best on it, at 7.17:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.92:1 |
| White text | 7.17:1 |
Values
| HEX | #455780 |
| RGB | rgb(69, 87, 128) |
| HSL | hsl(222, 30%, 39%) |
| OKLCH | oklch(46% 0.071 265.6) |
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 #455780 | 7.17:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #455780 | 2.92:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #455780 text on white | 7.17:1 | AAA | Lc 84.8 | Fine for body text |
| #455780 text on black | 2.92:1 | Fails | Lc -17.2 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B6C1D8
oklch(81% 0.035 265.2)
-
Step 400
400
#90A0C4
oklch(70.6% 0.056 266.2)
-
Step 500
500
#7589B5
oklch(63.1% 0.071 265.5)
-
Step 600
600
#5E72A1
oklch(55.6% 0.077 266.2)
-
Step 700
700 (this color)
#455780
oklch(46% 0.071 265.6)
-
Step 800
800
#3F4E70
oklch(42.6% 0.06 265.7)
-
Step 900
900
#36415A
oklch(37.7% 0.045 265.9)
-
Step 950
950
#202635
oklch(27% 0.029 267.5)
#455780 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) | #485A82 | 0.010 |
| Deuteranopia (no green cones) | #42557F | 0.008 |
| Tritanopia (no blue cones) | #2F6066 | 0.064 |
| Achromatopsia (no color) | #575757 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455780
#455780
oklch(46% 0.071 265.6)
- #6A5525
#6A5525
oklch(46% 0.071 85.6)
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 #455780, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.015
- YInMn Blue #415A77 ΔE 0.020
- Dusty Grape #545775 ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.028
- Denim Blue #3B5B92 ΔE 0.030
- Twilight #4E518B ΔE 0.030
- Denim #3B638C ΔE 0.036
- Dusky Blue #475F94 ΔE 0.036
Use #455780 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.