#2A2A7D
Closest named color: Midnight Blue (#191970). oklch(34.2% 0.137 276.4), rgb(42, 42, 125).
Aa
White text reads best on this color (12.16:1).
About this color
#2A2A7D is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.137 and its hue 276°. 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 12.16:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.72:1 |
| White text | 12.16:1 |
Values
| HEX | #2A2A7D |
| RGB | rgb(42, 42, 125) |
| HSL | hsl(240, 50%, 33%) |
| OKLCH | oklch(34.2% 0.137 276.4) |
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 #2A2A7D | 12.16:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #2A2A7D | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #2A2A7D text on white | 12.16:1 | AAA | Lc 97.3 | Preferred for body text |
| #2A2A7D text on black | 1.72:1 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E9FE
oklch(93.7% 0.029 275.2)
-
Step 200
200
#CFD7FF
oklch(88.6% 0.056 276.3)
-
Step 300
300
#B0BBFF
oklch(80.8% 0.097 276.9)
-
Step 400
400
#8895FF
oklch(70.6% 0.155 276.4)
-
Step 500
500
#6E76FF
oklch(63.1% 0.2 276.5)
-
Step 600
600
#5857F4
oklch(55.6% 0.228 276.3)
-
Step 700
700
#4945D5
oklch(49% 0.213 276.3)
-
Step 800
800
#3C3BAC
oklch(42.8% 0.175 276.4)
-
Step 900
900 (this color)
#2A2A7D
oklch(34.2% 0.137 276.4)
-
Step 950
950
#1D2050
oklch(27.2% 0.087 276.3)
#2A2A7D 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) | #003980 | 0.047 |
| Deuteranopia (no green cones) | #00327B | 0.040 |
| Tritanopia (no blue cones) | #003F4F | 0.113 |
| Achromatopsia (no color) | #363636 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A2A7D
#2A2A7D
oklch(34.2% 0.137 276.4)
- #433800
#433800
oklch(34.2% 0.071 96.8)
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 #2A2A7D, closest first.
No curated palette has a color within ΔE 0.04 of #2A2A7D.
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
- Royal #0C1793 ΔE 0.065
- Marine #042E60 ΔE 0.066
- Twilight Blue #0A437A ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.076
- Prussian Blue #1D3557 ΔE 0.077
- Indigo #4B0082 ΔE 0.081
Use #2A2A7D 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.