#354577
Closest named color: Twilight Blue (#0A437A). oklch(40.2% 0.087 268.9), rgb(53, 69, 119).
Aa
White text reads best on this color (9.25:1).
About this color
#354577 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.087 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.041 away. White text reads best on it, at 9.25:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.26:1 |
| White text | 9.25:1 |
Values
| HEX | #354577 |
| RGB | rgb(53, 69, 119) |
| HSL | hsl(225, 38%, 34%) |
| OKLCH | oklch(40.2% 0.087 268.9) |
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 #354577 | 9.25:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #354577 | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #354577 text on white | 9.25:1 | AAA | Lc 91.2 | Preferred for body text |
| #354577 text on black | 2.26:1 | Fails | Lc -11.1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B3C0E2
oklch(80.9% 0.05 268.8)
-
Step 400
400
#8C9FD4
oklch(70.8% 0.081 269)
-
Step 500
500
#7086C9
oklch(63.1% 0.105 269.4)
-
Step 600
600
#586FB5
oklch(55.6% 0.112 268.8)
-
Step 700
700
#485D9C
oklch(49.2% 0.104 268.5)
-
Step 800
800 (this color)
#354577
oklch(40.2% 0.087 268.9)
-
Step 900
900
#334066
oklch(37.9% 0.067 268.7)
-
Step 950
950
#1E253C
oklch(27% 0.044 270.3)
#354577 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) | #314A79 | 0.015 |
| Deuteranopia (no green cones) | #294576 | 0.015 |
| Tritanopia (no blue cones) | #145058 | 0.078 |
| Achromatopsia (no color) | #474747 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #354577
#354577
oklch(40.2% 0.087 268.9)
- #5A4500
#5A4500
oklch(40.2% 0.082 88.8)
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 #354577, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.041
- Light Navy #155084 ΔE 0.042
- Cobalt #1E488F ΔE 0.045
- Dusk Blue #26538D ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.051
- Deep Sea Blue #015482 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.053
- Blueberry #464196 ΔE 0.060
Use #354577 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.