#43566F
Closest named color: YInMn Blue (#415A77). oklch(44.8% 0.048 255.5), rgb(67, 86, 111).
Aa
White text reads best on this color (7.50:1).
About this color
#43566F is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.048 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.015 away. White text reads best on it, at 7.50:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.79:1 |
| White text | 7.50:1 |
Values
| HEX | #43566F |
| RGB | rgb(67, 86, 111) |
| HSL | hsl(214, 25%, 35%) |
| OKLCH | oklch(44.8% 0.048 255.5) |
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 #43566F | 7.50:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #43566F | 2.79:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #43566F text on white | 7.50:1 | AAA | Lc 86.0 | Fine for body text |
| #43566F text on black | 2.79:1 | Fails | Lc -16.0 | 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
#D3DAE3
oklch(88.6% 0.015 254.6)
-
Step 300
300
#B5C2D3
oklch(80.9% 0.028 255.1)
-
Step 400
400
#8FA2BD
oklch(70.7% 0.045 257.2)
-
Step 500
500
#738BAC
oklch(63% 0.057 256.4)
-
Step 600
600
#5B7597
oklch(55.6% 0.061 255.3)
-
Step 700
700
#4B6281
oklch(49% 0.057 256)
-
Step 800
800 (this color)
#43566F
oklch(44.8% 0.048 255.5)
-
Step 900
900
#344355
oklch(37.7% 0.037 253.3)
-
Step 950
950
#1F2732
oklch(27% 0.024 256.4)
#43566F 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) | #4D5770 | 0.015 |
| Deuteranopia (no green cones) | #48536E | 0.010 |
| Tritanopia (no blue cones) | #345B5E | 0.042 |
| Achromatopsia (no color) | #555555 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43566F
#43566F
oklch(44.8% 0.048 255.5)
- #645136
#645136
oklch(44.7% 0.048 75.8)
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 #43566F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.015
- Dusty Grape #545775 ΔE 0.028
- Dusk #4E5481 ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.044
- Slate #516572 ΔE 0.052
- Denim #3B638C ΔE 0.053
- Twilight #4E518B ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.056
Use #43566F 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.