#1A335B
Closest named color: Prussian Blue (#1D3557). oklch(32.4% 0.078 259.4), rgb(26, 51, 91).
Aa
White text reads best on this color (12.58:1).
About this color
#1A335B is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.078 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.011 away. White text reads best on it, at 12.58:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.66:1 |
| White text | 12.58:1 |
Values
| HEX | #1A335B |
| RGB | rgb(26, 51, 91) |
| HSL | hsl(217, 56%, 23%) |
| OKLCH | oklch(32.4% 0.078 259.4) |
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 #1A335B | 12.58:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #1A335B | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #1A335B text on white | 12.58:1 | AAA | Lc 98.4 | Preferred for body text |
| #1A335B text on black | 1.66:1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#ABC2E7
oklch(80.9% 0.058 259.9)
-
Step 400
400
#7EA2DB
oklch(70.8% 0.093 259.4)
-
Step 500
500
#5D89D1
oklch(63% 0.12 259.8)
-
Step 600
600
#4272BE
oklch(55.5% 0.13 259.2)
-
Step 700
700
#345FA4
oklch(49% 0.121 259.4)
-
Step 800
800
#2C4E85
oklch(42.7% 0.1 259.6)
-
Step 900
900 (this color)
#1A335B
oklch(32.4% 0.078 259.4)
-
Step 950
950
#17263E
oklch(26.8% 0.05 259.5)
#1A335B 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) | #21375D | 0.016 |
| Deuteranopia (no green cones) | #17305A | 0.010 |
| Tritanopia (no blue cones) | #003C42 | 0.063 |
| Achromatopsia (no color) | #333333 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A335B
#1A335B
oklch(32.4% 0.078 259.4)
- #462F00
#462F00
oklch(32.4% 0.067 79.2)
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 #1A335B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.011
- Marine #042E60 ΔE 0.028
- Marine Blue #01386A ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.041
- Midnight Green #073B4C ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.048
- Gunmetal #293241 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.065
Use #1A335B 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.