#2C2F6E
Closest named color: Marine Blue (#01386A). oklch(34.1% 0.107 277), rgb(44, 47, 110).
Aa
White text reads best on this color (12.07:1).
About this color
#2C2F6E is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.107 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.045 away. White text reads best on it, at 12.07:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.73:1 |
| White text | 12.07:1 |
Values
| HEX | #2C2F6E |
| RGB | rgb(44, 47, 110) |
| HSL | hsl(237, 43%, 30%) |
| OKLCH | oklch(34.1% 0.107 277) |
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 #2C2F6E | 12.07:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #2C2F6E | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #2C2F6E text on white | 12.07:1 | AAA | Lc 97.4 | Preferred for body text |
| #2C2F6E text on black | 1.73:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D1D7F7
oklch(88.5% 0.044 277.1)
-
Step 300
300
#B3BCF5
oklch(80.8% 0.081 277.4)
-
Step 400
400
#8D98F0
oklch(70.7% 0.129 277.2)
-
Step 500
500
#727CEB
oklch(63.2% 0.165 276.7)
-
Step 600
600
#5D62D9
oklch(55.7% 0.179 277.1)
-
Step 700
700
#4D50BC
oklch(49.1% 0.166 277.2)
-
Step 800
800
#3F4298
oklch(42.6% 0.138 277.3)
-
Step 900
900 (this color)
#2C2F6E
oklch(34.1% 0.107 277)
-
Step 950
950
#1F2247
oklch(27.1% 0.068 277.3)
#2C2F6E 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) | #063970 | 0.042 |
| Deuteranopia (no green cones) | #00336D | 0.042 |
| Tritanopia (no blue cones) | #053E49 | 0.095 |
| Achromatopsia (no color) | #363636 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C2F6E
#2C2F6E
oklch(34.1% 0.107 277)
- #423800
#423800
oklch(34.1% 0.07 98)
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 #2C2F6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.045
- Prussian Blue #1D3557 ΔE 0.051
- Marine #042E60 ΔE 0.051
- Twilight Blue #0A437A ΔE 0.061
- Midnight Blue #191970 ΔE 0.065
- Dark Blue Grey #1F3B4D ΔE 0.077
- Dark Slate Blue #483D8B ΔE 0.078
- Space Cadet #2B2D42 ΔE 0.078
Use #2C2F6E 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.