#455366
Closest named color: YInMn Blue (#415A77). oklch(43.8% 0.036 256.1), rgb(69, 83, 102).
Aa
White text reads best on this color (7.82:1).
About this color
#455366 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.036 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.030 away. White text reads best on it, at 7.82:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #455366 |
| RGB | rgb(69, 83, 102) |
| HSL | hsl(215, 19%, 34%) |
| OKLCH | oklch(43.8% 0.036 256.1) |
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 #455366 | 7.82:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #455366 | 2.68:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #455366 text on white | 7.82:1 | AAA | Lc 87.2 | Fine for body text |
| #455366 text on black | 2.68:1 | Fails | Lc -14.9 | Not readable |
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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE1
oklch(88.6% 0.012 252.1)
-
Step 300
300
#B8C1CE
oklch(80.8% 0.021 257.5)
-
Step 400
400
#93A2B6
oklch(70.7% 0.034 255.6)
-
Step 500
500
#798BA4
oklch(63.1% 0.043 256.6)
-
Step 600
600
#61758F
oklch(55.6% 0.047 255.1)
-
Step 700
700
#51627A
oklch(49.1% 0.044 257)
-
Step 800
800 (this color)
#455366
oklch(43.8% 0.036 256.1)
-
Step 900
900
#384251
oklch(37.6% 0.029 258.4)
-
Step 950
950
#21272F
oklch(27% 0.017 255.7)
#455366 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) | #4C5467 | 0.011 |
| Deuteranopia (no green cones) | #495066 | 0.010 |
| Tritanopia (no blue cones) | #3B5759 | 0.032 |
| Achromatopsia (no color) | #525252 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #455366
#455366
oklch(43.8% 0.036 256.1)
- #5E4F3C
#5E4F3C
oklch(43.7% 0.036 73.2)
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 #455366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.030
- Dusty Grape #545775 ΔE 0.036
- Dusk #4E5481 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.058
- Slate #516572 ΔE 0.059
- Petrol #005F6A ΔE 0.059
- Dark Grey Blue #29465B ΔE 0.060
Use #455366 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.