#1A336A
Closest named color: Marine Blue (#01386A). oklch(33.5% 0.101 263.5), rgb(26, 51, 106).
Aa
White text reads best on this color (12.16:1).
About this color
#1A336A is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.101 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.020 away. White text reads best on it, at 12.16:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.72:1 |
| White text | 12.16:1 |
Values
| HEX | #1A336A |
| RGB | rgb(26, 51, 106) |
| HSL | hsl(221, 61%, 26%) |
| OKLCH | oklch(33.5% 0.101 263.5) |
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 #1A336A | 12.16:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #1A336A | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #1A336A text on white | 12.16:1 | AAA | Lc 97.5 | Preferred for body text |
| #1A336A text on black | 1.72:1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF6
oklch(88.6% 0.042 263)
-
Step 300
300
#A7C1F3
oklch(80.9% 0.077 263.3)
-
Step 400
400
#799FEC
oklch(70.7% 0.121 263.6)
-
Step 500
500
#5785E6
oklch(63.1% 0.155 263.5)
-
Step 600
600
#3D6CD5
oklch(55.5% 0.17 263.7)
-
Step 700
700
#305AB8
oklch(49.1% 0.156 263.6)
-
Step 800
800
#284A95
oklch(42.7% 0.13 263.5)
-
Step 900
900 (this color)
#1A336A
oklch(33.5% 0.101 263.5)
-
Step 950
950
#162545
oklch(27% 0.063 263.8)
#1A336A 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) | #14396C | 0.017 |
| Deuteranopia (no green cones) | #003269 | 0.020 |
| Tritanopia (no blue cones) | #004049 | 0.081 |
| Achromatopsia (no color) | #363636 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A336A
#1A336A
oklch(33.5% 0.101 263.5)
- #473300
#473300
oklch(33.5% 0.069 84.4)
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 #1A336A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.020
- Marine #042E60 ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.035
- Twilight Blue #0A437A ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.062
- Midnight Green #073B4C ΔE 0.066
- Midnight Blue #191970 ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.072
Use #1A336A 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.