#242B76
Closest named color: Midnight Blue (#191970). oklch(33.4% 0.127 273.3), rgb(36, 43, 118).
Aa
White text reads best on this color (12.48:1).
About this color
#242B76 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.127 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.049 away. White text reads best on it, at 12.48:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.68:1 |
| White text | 12.48:1 |
Values
| HEX | #242B76 |
| RGB | rgb(36, 43, 118) |
| HSL | hsl(235, 53%, 30%) |
| OKLCH | oklch(33.4% 0.127 273.3) |
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 #242B76 | 12.48:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #242B76 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #242B76 text on white | 12.48:1 | AAA | Lc 97.9 | Preferred for body text |
| #242B76 text on black | 1.68:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CDD8FD
oklch(88.6% 0.052 272.2)
-
Step 300
300
#ACBDFF
oklch(80.9% 0.095 273)
-
Step 400
400
#8397FF
oklch(70.7% 0.153 273.6)
-
Step 500
500
#6679FD
oklch(63% 0.196 273.3)
-
Step 600
600
#515EEC
oklch(55.6% 0.211 273.3)
-
Step 700
700
#424CCD
oklch(49% 0.197 273.2)
-
Step 800
800
#3640A6
oklch(42.8% 0.162 273.1)
-
Step 900
900 (this color)
#242B76
oklch(33.4% 0.127 273.3)
-
Step 950
950
#1B214D
oklch(27% 0.081 273.9)
#242B76 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) | #003878 | 0.040 |
| Deuteranopia (no green cones) | #003075 | 0.032 |
| Tritanopia (no blue cones) | #003E4C | 0.104 |
| Achromatopsia (no color) | #343434 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #242B76
#242B76
oklch(33.4% 0.127 273.3)
- #423500
#423500
oklch(33.3% 0.068 93.7)
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 #242B76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.049
- Marine Blue #01386A ΔE 0.049
- Marine #042E60 ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.065
- Twilight Blue #0A437A ΔE 0.066
- Royal #0C1793 ΔE 0.069
- Cobalt #1E488F ΔE 0.085
- Dark Slate Blue #483D8B ΔE 0.085
Use #242B76 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.