#435166
Closest named color: YInMn Blue (#415A77). oklch(43.1% 0.039 258.3), rgb(67, 81, 102).
Aa
White text reads best on this color (8.05:1).
About this color
#435166 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.039 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.034 away. White text reads best on it, at 8.05:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.60:1 |
| White text | 8.05:1 |
Values
| HEX | #435166 |
| RGB | rgb(67, 81, 102) |
| HSL | hsl(216, 21%, 33%) |
| OKLCH | oklch(43.1% 0.039 258.3) |
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 #435166 | 8.05:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #435166 | 2.60:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #435166 text on white | 8.05:1 | AAA | Lc 87.9 | Fine for body text |
| #435166 text on black | 2.60:1 | Fails | Lc -14.3 | Not readable |
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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4D9E2
oklch(88.4% 0.013 262.4)
-
Step 300
300
#B8C1D0
oklch(80.9% 0.023 260.7)
-
Step 400
400
#93A2B8
oklch(70.8% 0.036 257.9)
-
Step 500
500
#788BA6
oklch(63.1% 0.046 257.2)
-
Step 600
600
#617492
oklch(55.5% 0.052 259.4)
-
Step 700
700
#50627C
oklch(49.2% 0.047 257.5)
-
Step 800
800 (this color)
#435166
oklch(43.1% 0.039 258.3)
-
Step 900
900
#384252
oklch(37.7% 0.031 259.7)
-
Step 950
950
#212730
oklch(27.1% 0.019 258.4)
#435166 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) | #4A5267 | 0.011 |
| Deuteranopia (no green cones) | #464F66 | 0.007 |
| Tritanopia (no blue cones) | #395558 | 0.034 |
| Achromatopsia (no color) | #505050 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #435166
#435166
oklch(43.1% 0.039 258.3)
- #5C4E38
#5C4E38
oklch(43.2% 0.039 78.7)
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 #435166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.034
- Dusty Grape #545775 ΔE 0.040
- Dusk #4E5481 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.053
- Light Navy Blue #2E5A88 ΔE 0.058
- Petrol #005F6A ΔE 0.061
- Charcoal #264653 ΔE 0.061
Use #435166 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.