#054371
Closest named color: Twilight Blue (#0A437A). oklch(37.4% 0.097 248.1), rgb(5, 67, 113).
Aa
White text reads best on this color (10.25:1).
About this color
#054371 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.097 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.016 away. White text reads best on it, at 10.25:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.04:1 |
| White text | 10.25:1 |
Values
| HEX | #054371 |
| RGB | rgb(5, 67, 113) |
| HSL | hsl(206, 92%, 23%) |
| OKLCH | oklch(37.4% 0.097 248.1) |
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 #054371 | 10.25:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #054371 | 2.04:1 | Fails | Lc 10.6 | Not readable |
| #054371 text on white | 10.25:1 | AAA | Lc 93.3 | Preferred for body text |
| #054371 text on black | 2.04:1 | Fails | Lc -9.2 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C5DCF3
oklch(88.5% 0.04 248.3)
-
Step 300
300
#9CC5EE
oklch(80.8% 0.073 248.7)
-
Step 400
400
#62A6E6
oklch(70.7% 0.117 248.4)
-
Step 500
500
#2D8EDE
oklch(63% 0.149 248.2)
-
Step 600
600
#0077C6
oklch(55.6% 0.15 248.2)
-
Step 700
700
#0064A7
oklch(49.1% 0.132 247.9)
-
Step 800
800
#00528A
oklch(42.8% 0.115 247.8)
-
Step 900
900 (this color)
#054371
oklch(37.4% 0.097 248.1)
-
Step 950
950
#082843
oklch(27% 0.062 248.2)
#054371 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) | #2C4673 | 0.033 |
| Deuteranopia (no green cones) | #1B3D70 | 0.020 |
| Tritanopia (no blue cones) | #004E54 | 0.069 |
| Achromatopsia (no color) | #414141 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #054371
#054371
oklch(37.4% 0.097 248.1)
- #5D3700
#5D3700
oklch(37.5% 0.082 67.8)
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 #054371, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.016
- Marine Blue #01386A ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.048
- Light Navy #155084 ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.055
- Cobalt #1E488F ΔE 0.055
- Prussian Blue #1D3557 ΔE 0.056
- Charcoal #264653 ΔE 0.059
Use #054371 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.