#40546C
Closest named color: YInMn Blue (#415A77). oklch(43.9% 0.047 253.4), rgb(64, 84, 108).
Aa
White text reads best on this color (7.77:1).
About this color
#40546C is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.047 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.023 away. White text reads best on it, at 7.77:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.70:1 |
| White text | 7.77:1 |
Values
| HEX | #40546C |
| RGB | rgb(64, 84, 108) |
| HSL | hsl(213, 26%, 34%) |
| OKLCH | oklch(43.9% 0.047 253.4) |
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 #40546C | 7.77:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #40546C | 2.70:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #40546C text on white | 7.77:1 | AAA | Lc 86.9 | Fine for body text |
| #40546C text on black | 2.70:1 | Fails | Lc -15.2 | 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 800.
-
Step 50
50
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D2DAE3
oklch(88.5% 0.015 251.2)
-
Step 300
300
#B5C2D2
oklch(80.9% 0.027 253.6)
-
Step 400
400
#8EA3BC
oklch(70.8% 0.044 252.9)
-
Step 500
500
#728CAB
oklch(63.1% 0.056 253.1)
-
Step 600
600
#5A7697
oklch(55.7% 0.061 253)
-
Step 700
700
#4A6381
oklch(49.2% 0.057 253.4)
-
Step 800
800 (this color)
#40546C
oklch(43.9% 0.047 253.4)
-
Step 900
900
#344355
oklch(37.7% 0.037 253.3)
-
Step 950
950
#1F2732
oklch(27% 0.024 256.4)
#40546C 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) | #4B556D | 0.016 |
| Deuteranopia (no green cones) | #46506C | 0.014 |
| Tritanopia (no blue cones) | #31595C | 0.040 |
| Achromatopsia (no color) | #525252 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40546C
#40546C
oklch(43.9% 0.047 253.4)
- #624E35
#624E35
oklch(43.8% 0.046 72.3)
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 #40546C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.023
- Dusty Grape #545775 ΔE 0.035
- Dusk #4E5481 ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.047
- Petrol #005F6A ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.058
- Slate #516572 ΔE 0.059
Use #40546C 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.