#455378
Closest named color: Dusk (#4E5481). oklch(44.7% 0.064 267.9), rgb(69, 83, 120).
Aa
White text reads best on this color (7.60:1).
About this color
#455378 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.064 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.020 away. White text reads best on it, at 7.60:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.76:1 |
| White text | 7.60:1 |
Values
| HEX | #455378 |
| RGB | rgb(69, 83, 120) |
| HSL | hsl(224, 27%, 37%) |
| OKLCH | oklch(44.7% 0.064 267.9) |
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 #455378 | 7.60:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #455378 | 2.76:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #455378 text on white | 7.60:1 | AAA | Lc 86.4 | Fine for body text |
| #455378 text on black | 2.76:1 | Fails | Lc -15.7 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D3D9E7
oklch(88.5% 0.02 267.3)
-
Step 300
300
#B6C0D9
oklch(80.8% 0.037 268.2)
-
Step 400
400
#90A0C7
oklch(70.7% 0.06 267.4)
-
Step 500
500
#7588B8
oklch(63% 0.076 267.5)
-
Step 600
600
#5E71A4
oklch(55.5% 0.083 268)
-
Step 700
700
#4E5F8D
oklch(49.2% 0.077 268)
-
Step 800
800 (this color)
#455378
oklch(44.7% 0.064 267.9)
-
Step 900
900
#36415C
oklch(37.8% 0.049 267)
-
Step 950
950
#202636
oklch(27% 0.031 268.4)
#455378 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) | #46567A | 0.009 |
| Deuteranopia (no green cones) | #415277 | 0.007 |
| Tritanopia (no blue cones) | #345B60 | 0.058 |
| Achromatopsia (no color) | #545454 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455378
#455378
oklch(44.7% 0.064 267.9)
- #635228
#635228
oklch(44.6% 0.063 87.7)
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 #455378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.020
- YInMn Blue #415A77 ΔE 0.022
- Dusty Grape #545775 ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.036
- Twilight #4E518B ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.044
- Dusk Blue #26538D ΔE 0.048
- Denim #3B638C ΔE 0.050
Use #455378 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.