#2C3075
Closest named color: Marine Blue (#01386A). oklch(34.8% 0.116 276), rgb(44, 48, 117).
Aa
White text reads best on this color (11.75:1).
About this color
#2C3075 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.116 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.048 away. White text reads best on it, at 11.75:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.78:1 |
| White text | 11.75:1 |
Values
| HEX | #2C3075 |
| RGB | rgb(44, 48, 117) |
| HSL | hsl(237, 45%, 32%) |
| OKLCH | oklch(34.8% 0.116 276) |
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 #2C3075 | 11.75:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #2C3075 | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #2C3075 text on white | 11.75:1 | AAA | Lc 96.7 | Preferred for body text |
| #2C3075 text on black | 1.78:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D0D7FA
oklch(88.5% 0.049 276.4)
-
Step 300
300
#B1BCF9
oklch(80.8% 0.087 276.4)
-
Step 400
400
#8A97F7
oklch(70.7% 0.141 276.3)
-
Step 500
500
#6F7AF3
oklch(63.1% 0.179 276.1)
-
Step 600
600
#5960E2
oklch(55.7% 0.194 275.8)
-
Step 700
700
#4A4EC4
oklch(49.1% 0.18 276)
-
Step 800
800
#3C419E
oklch(42.7% 0.148 275.8)
-
Step 900
900 (this color)
#2C3075
oklch(34.8% 0.116 276)
-
Step 950
950
#1D214A
oklch(26.9% 0.075 275.9)
#2C3075 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) | #003B77 | 0.044 |
| Deuteranopia (no green cones) | #003574 | 0.040 |
| Tritanopia (no blue cones) | #00404D | 0.100 |
| Achromatopsia (no color) | #383838 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C3075
#2C3075
oklch(34.8% 0.116 276)
- #453900
#453900
oklch(34.7% 0.071 95.8)
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 #2C3075, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.048
- Twilight Blue #0A437A ΔE 0.056
- Marine #042E60 ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.060
- Midnight Blue #191970 ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.070
- Cobalt #1E488F ΔE 0.074
- Blueberry #464196 ΔE 0.083
Use #2C3075 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.