#43658B
Closest named color: Denim (#3B638C). oklch(49.7% 0.073 252), rgb(67, 101, 139).
Aa
White text reads best on this color (6.04:1).
About this color
#43658B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.073 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.012 away. White text reads best on it, at 6.04:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #43658B |
| RGB | rgb(67, 101, 139) |
| HSL | hsl(212, 35%, 40%) |
| OKLCH | oklch(49.7% 0.073 252) |
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 #43658B | 6.04:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #43658B | 3.47:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #43658B text on white | 6.04:1 | AA | Lc 80.1 | Fine for body text |
| #43658B text on black | 3.47:1 | AA large text | Lc -21.7 | 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 700.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D0DAE6
oklch(88.4% 0.02 252.9)
-
Step 300
300
#B1C3D7
oklch(81% 0.035 251)
-
Step 400
400
#87A3C3
oklch(70.6% 0.057 252)
-
Step 500
500
#698DB4
oklch(63.2% 0.072 251)
-
Step 600
600
#5176A0
oklch(55.6% 0.078 252.3)
-
Step 700
700 (this color)
#43658B
oklch(49.7% 0.073 252)
-
Step 800
800
#36516F
oklch(42.7% 0.06 251.8)
-
Step 900
900
#2F435A
oklch(37.6% 0.047 252.5)
-
Step 950
950
#1C2735
oklch(26.9% 0.03 254.7)
#43658B 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) | #56678D | 0.026 |
| Deuteranopia (no green cones) | #4D5F8A | 0.020 |
| Tritanopia (no blue cones) | #206E72 | 0.064 |
| Achromatopsia (no color) | #636363 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43658B
#43658B
oklch(49.7% 0.073 252)
- #7C5B31
#7C5B31
oklch(49.6% 0.073 71.5)
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 #43658B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.012
- Dusky Blue #475F94 ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.037
- Muted Blue #3B719F ΔE 0.041
- YInMn Blue #415A77 ΔE 0.041
- Peacock Blue #016795 ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.043
- Slate #516572 ΔE 0.043
Use #43658B 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.