#2D3763
Closest named color: Prussian Blue (#1D3557). oklch(35.1% 0.078 272.2), rgb(45, 55, 99).
Aa
White text reads best on this color (11.42:1).
About this color
#2D3763 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.078 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.032 away. White text reads best on it, at 11.42:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.83:1 |
| White text | 11.42:1 |
Values
| HEX | #2D3763 |
| RGB | rgb(45, 55, 99) |
| HSL | hsl(229, 38%, 28%) |
| OKLCH | oklch(35.1% 0.078 272.2) |
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 #2D3763 | 11.42:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #2D3763 | 1.83:1 | Fails | Lc 7.7 | Not readable |
| #2D3763 text on white | 11.42:1 | AAA | Lc 96.2 | Preferred for body text |
| #2D3763 text on black | 1.83:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D1D8EF
oklch(88.4% 0.033 272.2)
-
Step 300
300
#B3BFE7
oklch(80.9% 0.058 272)
-
Step 400
400
#8C9DDB
oklch(70.7% 0.093 272.1)
-
Step 500
500
#7184D1
oklch(63.2% 0.118 272.1)
-
Step 600
600
#5A6CBE
oklch(55.6% 0.129 272.3)
-
Step 700
700
#4A5AA4
oklch(49.1% 0.12 272.1)
-
Step 800
800
#3D4A85
oklch(42.8% 0.099 272.3)
-
Step 900
900 (this color)
#2D3763
oklch(35.1% 0.078 272.2)
-
Step 950
950
#1E253E
oklch(27.1% 0.048 271.1)
#2D3763 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) | #253C65 | 0.017 |
| Deuteranopia (no green cones) | #203862 | 0.017 |
| Tritanopia (no blue cones) | #154048 | 0.068 |
| Achromatopsia (no color) | #3A3A3A | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D3763
#2D3763
oklch(35.1% 0.078 272.2)
- #483900
#483900
oklch(35.1% 0.072 92.3)
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 #2D3763, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.032
- Marine Blue #01386A ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.053
- Twilight Blue #0A437A ΔE 0.053
- Marine #042E60 ΔE 0.055
- Gunmetal #293241 ΔE 0.060
- Midnight Green #073B4C ΔE 0.061
Use #2D3763 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.