#053789
Closest named color: Twilight Blue (#0A437A). oklch(36.4% 0.146 260.6), rgb(5, 55, 137).
Aa
White text reads best on this color (10.97:1).
About this color
#053789 is a dark, vivid blue. In OKLCH its lightness is 36%, its chroma 0.146 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.044 away. White text reads best on it, at 10.97:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.91:1 |
| White text | 10.97:1 |
Values
| HEX | #053789 |
| RGB | rgb(5, 55, 137) |
| HSL | hsl(217, 93%, 28%) |
| OKLCH | oklch(36.4% 0.146 260.6) |
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 #053789 | 10.97:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #053789 | 1.91:1 | Fails | Lc 9.3 | Not readable |
| #053789 text on white | 10.97:1 | AAA | Lc 94.6 | Preferred for body text |
| #053789 text on black | 1.91:1 | Fails | Lc -8.0 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C4DAFF
oklch(88.4% 0.057 260.8)
-
Step 300
300
#9DC2FF
oklch(81% 0.096 260.2)
-
Step 400
400
#679FFF
oklch(70.7% 0.153 260.6)
-
Step 500
500
#3B83FF
oklch(63.1% 0.198 260.5)
-
Step 600
600
#0065F9
oklch(55.6% 0.235 260.6)
-
Step 700
700
#0054D3
oklch(49% 0.208 260.7)
-
Step 800
800
#0045AF
oklch(42.8% 0.18 260.5)
-
Step 900
900 (this color)
#053789
oklch(36.4% 0.146 260.6)
-
Step 950
950
#082353
oklch(26.9% 0.094 260.9)
#053789 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) | #00428C | 0.030 |
| Deuteranopia (no green cones) | #003787 | 0.004 |
| Tritanopia (no blue cones) | #004C5A | 0.111 |
| Achromatopsia (no color) | #3C3C3C | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #053789
#053789
oklch(36.4% 0.146 260.6)
- #523900
#523900
oklch(36.4% 0.075 81)
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 #053789, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.044
- Cobalt #1E488F ΔE 0.053
- Marine Blue #01386A ΔE 0.054
- Sapphire #2138AB ΔE 0.061
- Royal #0C1793 ΔE 0.065
- Marine #042E60 ΔE 0.075
- Light Navy #155084 ΔE 0.075
- Dark Slate Blue #483D8B ΔE 0.080
Use #053789 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.