#354479
Closest named color: Twilight Blue (#0A437A). oklch(40.1% 0.091 270), rgb(53, 68, 121).
Aa
White text reads best on this color (9.31:1).
About this color
#354479 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.091 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.040 away. White text reads best on it, at 9.31:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #354479 |
| RGB | rgb(53, 68, 121) |
| HSL | hsl(227, 39%, 34%) |
| OKLCH | oklch(40.1% 0.091 270) |
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 #354479 | 9.31:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #354479 | 2.25:1 | Fails | Lc 12.6 | Not readable |
| #354479 text on white | 9.31:1 | AAA | Lc 91.4 | Preferred for body text |
| #354479 text on black | 2.25:1 | Fails | Lc -11.0 | 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 900.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CFD9F3
oklch(88.6% 0.037 268.9)
-
Step 300
300
#AFBFEE
oklch(80.9% 0.069 270.1)
-
Step 400
400
#869DE5
oklch(70.7% 0.109 269.9)
-
Step 500
500
#6983DE
oklch(63.2% 0.14 270)
-
Step 600
600
#516ACB
oklch(55.5% 0.152 270)
-
Step 700
700
#4258B0
oklch(49% 0.142 269.9)
-
Step 800
800
#37498E
oklch(42.8% 0.116 269.9)
-
Step 900
900 (this color)
#354479
oklch(40.1% 0.091 270)
-
Step 950
950
#1B2443
oklch(26.9% 0.059 269.9)
#354479 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) | #2E4A7B | 0.018 |
| Deuteranopia (no green cones) | #264478 | 0.019 |
| Tritanopia (no blue cones) | #125058 | 0.083 |
| Achromatopsia (no color) | #474747 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #354479
#354479
oklch(40.1% 0.091 270)
- #594500
#594500
oklch(40% 0.082 89.8)
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 #354479, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.040
- Cobalt #1E488F ΔE 0.042
- Light Navy #155084 ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.047
- Dusk Blue #26538D ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.054
- Blueberry #464196 ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.057
Use #354479 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.