#355F8E
Closest named color: Denim (#3B638C). oklch(47.7% 0.09 252.6), rgb(53, 95, 142).
Aa
White text reads best on this color (6.60:1).
About this color
#355F8E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.090 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.015 away. White text reads best on it, at 6.60:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.17:1 |
| White text | 6.60:1 |
Values
| HEX | #355F8E |
| RGB | rgb(53, 95, 142) |
| HSL | hsl(212, 46%, 38%) |
| OKLCH | oklch(47.7% 0.09 252.6) |
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 #355F8E | 6.60:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #355F8E | 3.17:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #355F8E text on white | 6.60:1 | AA | Lc 82.5 | Fine for body text |
| #355F8E text on black | 3.17:1 | AA large text | Lc -19.4 | 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
#CEDBE9
oklch(88.6% 0.024 250.1)
-
Step 300
300
#ADC3DD
oklch(80.9% 0.044 252.7)
-
Step 400
400
#82A4CB
oklch(70.8% 0.069 252.2)
-
Step 500
500
#618DBE
oklch(63.2% 0.089 251.9)
-
Step 600
600
#4876AA
oklch(55.6% 0.096 252.6)
-
Step 700
700 (this color)
#355F8E
oklch(47.7% 0.09 252.6)
-
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)
#355F8E 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) | #4B6290 | 0.028 |
| Deuteranopia (no green cones) | #3F598D | 0.019 |
| Tritanopia (no blue cones) | #006A70 | 0.074 |
| Achromatopsia (no color) | #5D5D5D | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355F8E
#355F8E
oklch(47.7% 0.09 252.6)
- #7B5418
#7B5418
oklch(47.7% 0.09 73.4)
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 #355F8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.015
- Denim Blue #3B5B92 ΔE 0.016
- Light Navy Blue #2E5A88 ΔE 0.019
- Dusky Blue #475F94 ΔE 0.023
- Peacock Blue #016795 ΔE 0.032
- YInMn Blue #415A77 ΔE 0.038
- Dusk Blue #26538D ΔE 0.041
- Dusk #4E5481 ΔE 0.042
Use #355F8E 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.