#1A3476
Closest named color: Marine Blue (#01386A). oklch(34.7% 0.118 264.7), rgb(26, 52, 118).
Aa
White text reads best on this color (11.68:1).
About this color
#1A3476 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.118 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.030 away. White text reads best on it, at 11.68:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.79:1 |
| White text | 11.68:1 |
Values
| HEX | #1A3476 |
| RGB | rgb(26, 52, 118) |
| HSL | hsl(223, 64%, 28%) |
| OKLCH | oklch(34.7% 0.118 264.7) |
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 #1A3476 | 11.68:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #1A3476 | 1.79:1 | Fails | Lc 7.4 | Not readable |
| #1A3476 text on white | 11.68:1 | AAA | Lc 96.5 | Preferred for body text |
| #1A3476 text on black | 1.79:1 | Fails | Lc 0.0 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FB
oklch(88.4% 0.05 265.4)
-
Step 300
300
#A4C0FB
oklch(80.8% 0.089 264.8)
-
Step 400
400
#749DF8
oklch(70.6% 0.141 264.7)
-
Step 500
500
#5282F5
oklch(63.1% 0.18 264.7)
-
Step 600
600
#3868E4
oklch(55.6% 0.196 264.7)
-
Step 700
700
#2B55C6
oklch(49% 0.183 264.9)
-
Step 800
800
#2447A0
oklch(42.8% 0.15 264.6)
-
Step 900
900 (this color)
#1A3476
oklch(34.7% 0.118 264.7)
-
Step 950
950
#14244A
oklch(27% 0.074 264.7)
#1A3476 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) | #023D78 | 0.027 |
| Deuteranopia (no green cones) | #003475 | 0.018 |
| Tritanopia (no blue cones) | #00444F | 0.094 |
| Achromatopsia (no color) | #383838 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A3476
#1A3476
oklch(34.7% 0.118 264.7)
- #4B3600
#4B3600
oklch(34.7% 0.071 84.3)
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 #1A3476, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.030
- Twilight Blue #0A437A ΔE 0.042
- Marine #042E60 ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.055
- Midnight Blue #191970 ΔE 0.067
- Cobalt #1E488F ΔE 0.068
- Royal #0C1793 ΔE 0.078
- Dark Blue Grey #1F3B4D ΔE 0.079
Use #1A3476 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.