#1E305A
Closest named color: Prussian Blue (#1D3557). oklch(31.8% 0.079 264.8), rgb(30, 48, 90).
Aa
White text reads best on this color (12.91:1).
About this color
#1E305A is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.079 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.018 away. White text reads best on it, at 12.91:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.62:1 |
| White text | 12.91:1 |
Values
| HEX | #1E305A |
| RGB | rgb(30, 48, 90) |
| HSL | hsl(222, 50%, 24%) |
| OKLCH | oklch(31.8% 0.079 264.8) |
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 #1E305A | 12.91:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #1E305A | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #1E305A text on white | 12.91:1 | AAA | Lc 98.9 | Preferred for body text |
| #1E305A text on black | 1.62:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8D9FC
oklch(88.4% 0.052 264.8)
-
Step 300
300
#A3C0FE
oklch(80.9% 0.094 265)
-
Step 400
400
#729DFD
oklch(70.7% 0.149 264.7)
-
Step 500
500
#4F80FB
oklch(63% 0.191 265)
-
Step 600
600
#3566EA
oklch(55.6% 0.207 264.9)
-
Step 700
700
#2854CC
oklch(49.2% 0.193 264.7)
-
Step 800
800
#2245A5
oklch(42.7% 0.16 265)
-
Step 900
900
#203C82
oklch(37.8% 0.123 264.7)
-
Step 950
950 (this color)
#1E305A
oklch(31.8% 0.079 264.8)
#1E305A 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) | #1D345C | 0.012 |
| Deuteranopia (no green cones) | #142F59 | 0.012 |
| Tritanopia (no blue cones) | #003940 | 0.067 |
| Achromatopsia (no color) | #313131 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E305A
#1E305A
oklch(31.8% 0.079 264.8)
- #412F00
#412F00
oklch(31.7% 0.065 85.4)
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 #1E305A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.018
- Marine #042E60 ΔE 0.027
- Marine Blue #01386A ΔE 0.037
- Space Cadet #2B2D42 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.047
- Gunmetal #293241 ΔE 0.049
- Midnight Green #073B4C ΔE 0.051
- Oxford Blue #1B263B ΔE 0.061
Use #1E305A 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.