#1E305E
Closest named color: Prussian Blue (#1D3557). oklch(32.1% 0.085 265.7), rgb(30, 48, 94).
Aa
White text reads best on this color (12.80:1).
About this color
#1E305E is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.085 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.022 away. White text reads best on it, at 12.80:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.63:1 |
| White text | 12.80:1 |
Values
| HEX | #1E305E |
| RGB | rgb(30, 48, 94) |
| HSL | hsl(223, 52%, 24%) |
| OKLCH | oklch(32.1% 0.085 265.7) |
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 #1E305E | 12.80:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #1E305E | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #1E305E text on white | 12.80:1 | AAA | Lc 98.7 | Preferred for body text |
| #1E305E text on black | 1.63:1 | 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 950.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A3C0FF
oklch(80.9% 0.095 265.2)
-
Step 400
400
#739CFF
oklch(70.7% 0.152 265.7)
-
Step 500
500
#507FFF
oklch(63.1% 0.197 265.8)
-
Step 600
600
#3462F4
oklch(55.6% 0.224 265.8)
-
Step 700
700
#2850D4
oklch(49.2% 0.208 265.8)
-
Step 800
800
#2142AB
oklch(42.6% 0.172 265.8)
-
Step 900
900
#1F3A88
oklch(37.8% 0.135 265.7)
-
Step 950
950 (this color)
#1E305E
oklch(32.1% 0.085 265.7)
#1E305E 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) | #1A3560 | 0.015 |
| Deuteranopia (no green cones) | #0F2F5D | 0.017 |
| Tritanopia (no blue cones) | #003A42 | 0.071 |
| Achromatopsia (no color) | #323232 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E305E
#1E305E
oklch(32.1% 0.085 265.7)
- #423000
#423000
oklch(32.1% 0.066 85.8)
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 #1E305E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.022
- Marine #042E60 ΔE 0.025
- Marine Blue #01386A ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.052
- Midnight Green #073B4C ΔE 0.056
- Gunmetal #293241 ΔE 0.056
- Oxford Blue #1B263B ΔE 0.067
Use #1E305E 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.