#40546A
Closest named color: YInMn Blue (#415A77). oklch(43.8% 0.044 251.2), rgb(64, 84, 106).
Aa
White text reads best on this color (7.79:1).
About this color
#40546A is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.044 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.025 away. White text reads best on it, at 7.79:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.69:1 |
| White text | 7.79:1 |
Values
| HEX | #40546A |
| RGB | rgb(64, 84, 106) |
| HSL | hsl(211, 25%, 33%) |
| OKLCH | oklch(43.8% 0.044 251.2) |
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 #40546A | 7.79:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #40546A | 2.69:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #40546A text on white | 7.79:1 | AAA | Lc 87.0 | Fine for body text |
| #40546A text on black | 2.69:1 | Fails | Lc -15.1 | 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
#B5C2D1
oklch(80.9% 0.026 251.9)
-
Step 400
400
#8EA3BA
oklch(70.7% 0.041 250.8)
-
Step 500
500
#728CA9
oklch(63.1% 0.053 251.4)
-
Step 600
600
#5A7694
oklch(55.6% 0.057 250.6)
-
Step 700
700
#4A637E
oklch(49.1% 0.053 250.8)
-
Step 800
800 (this color)
#40546A
oklch(43.8% 0.044 251.2)
-
Step 900
900
#344354
oklch(37.7% 0.035 251.9)
-
Step 950
950
#1F2731
oklch(27% 0.022 254.2)
#40546A 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) | #4C556B | 0.018 |
| Deuteranopia (no green cones) | #47506A | 0.015 |
| Tritanopia (no blue cones) | #32595B | 0.038 |
| Achromatopsia (no color) | #525252 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40546A
#40546A
oklch(43.8% 0.044 251.2)
- #624E37
#624E37
oklch(43.8% 0.044 70.2)
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 #40546A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.025
- Dusty Grape #545775 ΔE 0.036
- Dusk #4E5481 ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.052
- Petrol #005F6A ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.058
- Slate #516572 ΔE 0.059
Use #40546A 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.