#435C99
Closest named color: Dusky Blue (#475F94). oklch(48.4% 0.103 265.9), rgb(67, 92, 153).
Aa
White text reads best on this color (6.50:1).
About this color
#435C99 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.103 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.014 away. White text reads best on it, at 6.50:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.22:1 |
| White text | 6.50:1 |
Values
| HEX | #435C99 |
| RGB | rgb(67, 92, 153) |
| HSL | hsl(223, 39%, 43%) |
| OKLCH | oklch(48.4% 0.103 265.9) |
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 #435C99 | 6.50:1 | AA | Lc -87.2 | Fine for body text |
| Black text on #435C99 | 3.22:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #435C99 text on white | 6.50:1 | AA | Lc 82.1 | Fine for body text |
| #435C99 text on black | 3.22:1 | AA large text | Lc -19.8 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D0D9EC
oklch(88.4% 0.028 265.4)
-
Step 300
300
#B1C1E2
oklch(81% 0.05 264.8)
-
Step 400
400
#89A0D3
oklch(70.7% 0.079 265.6)
-
Step 500
500
#6C88C8
oklch(63.2% 0.102 265.6)
-
Step 600
600
#5470B4
oklch(55.5% 0.111 266)
-
Step 700
700 (this color)
#435C99
oklch(48.4% 0.103 265.9)
-
Step 800
800
#394D7E
oklch(42.8% 0.085 266.1)
-
Step 900
900
#314065
oklch(37.6% 0.067 266.5)
-
Step 950
950
#1D263B
oklch(27.1% 0.041 266)
#435C99 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) | #43629B | 0.017 |
| Deuteranopia (no green cones) | #385A98 | 0.015 |
| Tritanopia (no blue cones) | #106973 | 0.092 |
| Achromatopsia (no color) | #5E5E5E | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #435C99
#435C99
oklch(48.4% 0.103 265.9)
- #785A00
#785A00
oklch(48.5% 0.099 86)
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 #435C99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.014
- Denim Blue #3B5B92 ΔE 0.016
- Denim #3B638C ΔE 0.034
- Twilight #4E518B ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.038
- Dusk #4E5481 ΔE 0.042
- Dusk Blue #26538D ΔE 0.047
- French Blue #436BAD ΔE 0.048
Use #435C99 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.