#1053A9
Closest named color: Dusk Blue (#26538D). oklch(45.5% 0.152 257.5), rgb(16, 83, 169).
Aa
White text reads best on this color (7.41:1).
About this color
#1053A9 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.152 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.047 away. White text reads best on it, at 7.41:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.83:1 |
| White text | 7.41:1 |
Values
| HEX | #1053A9 |
| RGB | rgb(16, 83, 169) |
| HSL | hsl(214, 83%, 36%) |
| OKLCH | oklch(45.5% 0.152 257.5) |
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 #1053A9 | 7.41:1 | AAA | Lc -90.0 | Preferred for body text |
| Black text on #1053A9 | 2.83:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #1053A9 text on white | 7.41:1 | AAA | Lc 85.2 | Fine for body text |
| #1053A9 text on black | 2.83:1 | Fails | Lc -16.9 | 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 800.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBFA
oklch(88.5% 0.049 256.9)
-
Step 300
300
#9CC3FA
oklch(80.9% 0.089 257)
-
Step 400
400
#65A1F8
oklch(70.6% 0.143 257.7)
-
Step 500
500
#3787F5
oklch(63.2% 0.182 257.4)
-
Step 600
600
#086DE4
oklch(55.6% 0.199 257.7)
-
Step 700
700
#005BC3
oklch(49.1% 0.179 257.6)
-
Step 800
800 (this color)
#1053A9
oklch(45.5% 0.152 257.5)
-
Step 900
900
#103F7F
oklch(37.6% 0.119 257.7)
-
Step 950
950
#0B264A
oklch(27.1% 0.074 256.8)
#1053A9 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) | #1A5CAC | 0.026 |
| Deuteranopia (no green cones) | #004FA7 | 0.014 |
| Tritanopia (no blue cones) | #006876 | 0.115 |
| Achromatopsia (no color) | #555555 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1053A9
#1053A9
oklch(45.5% 0.152 257.5)
- #744F00
#744F00
oklch(45.7% 0.095 77.7)
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 #1053A9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.047
- Cobalt #1E488F ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.058
- Light Navy #155084 ΔE 0.060
- Blue Blue #2242C7 ΔE 0.063
- Light Navy Blue #2E5A88 ΔE 0.064
- Sapphire #2138AB ΔE 0.065
- Deep Sea Blue #015482 ΔE 0.066
Use #1053A9 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.