#435666
Closest named color: YInMn Blue (#415A77). oklch(44.4% 0.035 244.1), rgb(67, 86, 102).
Aa
White text reads best on this color (7.60:1).
About this color
#435666 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.035 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.027 away. White text reads best on it, at 7.60:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.76:1 |
| White text | 7.60:1 |
Values
| HEX | #435666 |
| RGB | rgb(67, 86, 102) |
| HSL | hsl(207, 21%, 33%) |
| OKLCH | oklch(44.4% 0.035 244.1) |
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 #435666 | 7.60:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #435666 | 2.76:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #435666 text on white | 7.60:1 | AAA | Lc 86.4 | Fine for body text |
| #435666 text on black | 2.76:1 | Fails | Lc -15.7 | 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 800.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B6C2CD
oklch(80.8% 0.02 245.7)
-
Step 400
400
#90A3B4
oklch(70.6% 0.033 245.3)
-
Step 500
500
#748DA2
oklch(63.1% 0.043 243.8)
-
Step 600
600
#5D778D
oklch(55.7% 0.046 244.3)
-
Step 700
700
#4C6478
oklch(49.2% 0.043 244)
-
Step 800
800 (this color)
#435666
oklch(44.4% 0.035 244.1)
-
Step 900
900
#35434F
oklch(37.5% 0.027 244.5)
-
Step 950
950
#1F282E
oklch(27.1% 0.017 237.4)
#435666 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) | #505667 | 0.019 |
| Deuteranopia (no green cones) | #4B5266 | 0.016 |
| Tritanopia (no blue cones) | #385A5B | 0.029 |
| Achromatopsia (no color) | #545454 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #435666
#435666
oklch(44.4% 0.035 244.1)
- #62503F
#62503F
oklch(44.5% 0.036 65.1)
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 #435666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.027
- Dusty Grape #545775 ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.051
- Dusk #4E5481 ΔE 0.051
- Slate #516572 ΔE 0.052
- Petrol #005F6A ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.057
- Deep Teal #00555A ΔE 0.060
Use #435666 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.