#355E91
Closest named color: Denim Blue (#3B5B92). oklch(47.7% 0.095 254.8), rgb(53, 94, 145).
Aa
White text reads best on this color (6.64:1).
About this color
#355E91 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.095 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.011 away. White text reads best on it, at 6.64:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.16:1 |
| White text | 6.64:1 |
Values
| HEX | #355E91 |
| RGB | rgb(53, 94, 145) |
| HSL | hsl(213, 46%, 39%) |
| OKLCH | oklch(47.7% 0.095 254.8) |
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 #355E91 | 6.64:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #355E91 | 3.16:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #355E91 text on white | 6.64:1 | AA | Lc 82.6 | Fine for body text |
| #355E91 text on black | 3.16:1 | AA large text | Lc -19.3 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CEDAEA
oklch(88.4% 0.026 255.6)
-
Step 300
300
#ADC3DE
oklch(80.9% 0.045 253.6)
-
Step 400
400
#82A3CE
oklch(70.7% 0.073 255.2)
-
Step 500
500
#618CC2
oklch(63.1% 0.095 254.6)
-
Step 600
600
#4875AE
oklch(55.6% 0.102 255)
-
Step 700
700 (this color)
#355E91
oklch(47.7% 0.095 254.8)
-
Step 800
800
#305079
oklch(42.6% 0.078 255.2)
-
Step 900
900
#2A4362
oklch(37.8% 0.062 254.4)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#355E91 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) | #486193 | 0.025 |
| Deuteranopia (no green cones) | #3C5890 | 0.018 |
| Tritanopia (no blue cones) | #006A71 | 0.078 |
| Achromatopsia (no color) | #5C5C5C | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355E91
#355E91
oklch(47.7% 0.095 254.8)
- #7C540E
#7C540E
oklch(47.8% 0.095 74.9)
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 #355E91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.011
- Light Navy Blue #2E5A88 ΔE 0.020
- Denim #3B638C ΔE 0.020
- Dusky Blue #475F94 ΔE 0.022
- Peacock Blue #016795 ΔE 0.034
- Dusk Blue #26538D ΔE 0.038
- YInMn Blue #415A77 ΔE 0.042
- Dusk #4E5481 ΔE 0.042
Use #355E91 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.