#355F8F
Closest named color: Denim Blue (#3B5B92). oklch(47.8% 0.091 253), rgb(53, 95, 143).
Aa
White text reads best on this color (6.59:1).
About this color
#355F8F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.091 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.015 away. White text reads best on it, at 6.59:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.18:1 |
| White text | 6.59:1 |
Values
| HEX | #355F8F |
| RGB | rgb(53, 95, 143) |
| HSL | hsl(212, 46%, 38%) |
| OKLCH | oklch(47.8% 0.091 253) |
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 #355F8F | 6.59:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #355F8F | 3.18:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #355F8F text on white | 6.59:1 | AA | Lc 82.4 | Fine for body text |
| #355F8F text on black | 3.18:1 | AA large text | Lc -19.5 | 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
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDAE9
oklch(88.4% 0.024 254)
-
Step 300
300
#ADC3DD
oklch(80.9% 0.044 252.7)
-
Step 400
400
#81A4CC
oklch(70.7% 0.07 252.1)
-
Step 500
500
#618CBF
oklch(63% 0.091 253.3)
-
Step 600
600
#4776AB
oklch(55.6% 0.098 252.6)
-
Step 700
700 (this color)
#355F8F
oklch(47.8% 0.091 253)
-
Step 800
800
#2F5177
oklch(42.7% 0.075 252.4)
-
Step 900
900
#2A4360
oklch(37.6% 0.059 253)
-
Step 950
950
#192738
oklch(26.9% 0.037 253.8)
#355F8F 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) | #4B6291 | 0.028 |
| Deuteranopia (no green cones) | #3F598E | 0.019 |
| Tritanopia (no blue cones) | #006A70 | 0.075 |
| Achromatopsia (no color) | #5D5D5D | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355F8F
#355F8F
oklch(47.8% 0.091 253)
- #7C5416
#7C5416
oklch(47.9% 0.092 73.2)
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 #355F8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.015
- Denim #3B638C ΔE 0.016
- Light Navy Blue #2E5A88 ΔE 0.020
- Dusky Blue #475F94 ΔE 0.023
- Peacock Blue #016795 ΔE 0.032
- YInMn Blue #415A77 ΔE 0.039
- Dusk Blue #26538D ΔE 0.040
- Dusk #4E5481 ΔE 0.042
Use #355F8F 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.