#2F2974
Closest named color: Midnight Blue (#191970). oklch(33.6% 0.124 281), rgb(47, 41, 116).
Aa
White text reads best on this color (12.42:1).
About this color
#2F2974 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.124 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.055 away. White text reads best on it, at 12.42:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.69:1 |
| White text | 12.42:1 |
Values
| HEX | #2F2974 |
| RGB | rgb(47, 41, 116) |
| HSL | hsl(245, 48%, 31%) |
| OKLCH | oklch(33.6% 0.124 281) |
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 #2F2974 | 12.42:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #2F2974 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #2F2974 text on white | 12.42:1 | AAA | Lc 97.9 | Preferred for body text |
| #2F2974 text on black | 1.69:1 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FC
oklch(93.5% 0.027 281.3)
-
Step 200
200
#D2D6FB
oklch(88.5% 0.051 280.4)
-
Step 300
300
#B5BAFC
oklch(80.9% 0.093 280.7)
-
Step 400
400
#9193FB
oklch(70.6% 0.15 281)
-
Step 500
500
#7975F8
oklch(63.2% 0.19 280.8)
-
Step 600
600
#6459E7
oklch(55.7% 0.207 280.8)
-
Step 700
700
#5447C8
oklch(49% 0.192 281.2)
-
Step 800
800
#443CA2
oklch(42.7% 0.159 280.8)
-
Step 900
900 (this color)
#2F2974
oklch(33.6% 0.124 281)
-
Step 950
950
#21204B
oklch(27.1% 0.077 280.9)
#2F2974 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) | #003776 | 0.053 |
| Deuteranopia (no green cones) | #003172 | 0.049 |
| Tritanopia (no blue cones) | #093B4A | 0.106 |
| Achromatopsia (no color) | #343434 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F2974
#2F2974
oklch(33.6% 0.124 281)
- #3F3800
#3F3800
oklch(33.7% 0.071 101.6)
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 #2F2974, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.055
- Marine Blue #01386A ΔE 0.060
- Marine #042E60 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.068
- Twilight Blue #0A437A ΔE 0.074
- Indigo #4B0082 ΔE 0.077
- Dark Slate Blue #483D8B ΔE 0.079
- Royal #0C1793 ΔE 0.080
Use #2F2974 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.