#242971
Closest named color: Midnight Blue (#191970). oklch(32.5% 0.122 274.3), rgb(36, 41, 113).
Aa
White text reads best on this color (12.87:1).
About this color
#242971 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.122 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.043 away. White text reads best on it, at 12.87:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.63:1 |
| White text | 12.87:1 |
Values
| HEX | #242971 |
| RGB | rgb(36, 41, 113) |
| HSL | hsl(236, 52%, 29%) |
| OKLCH | oklch(32.5% 0.122 274.3) |
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 #242971 | 12.87:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #242971 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #242971 text on white | 12.87:1 | AAA | Lc 98.7 | Preferred for body text |
| #242971 text on black | 1.63:1 | 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
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CED7FC
oklch(88.4% 0.052 274.5)
-
Step 300
300
#AEBDFC
oklch(81% 0.091 273.9)
-
Step 400
400
#8597FB
oklch(70.6% 0.147 274.3)
-
Step 500
500
#6A7AF8
oklch(63.1% 0.187 274.3)
-
Step 600
600
#545FE7
oklch(55.6% 0.203 274.2)
-
Step 700
700
#454DC9
oklch(49.1% 0.189 274.2)
-
Step 800
800
#3940A3
oklch(42.7% 0.157 274.5)
-
Step 900
900 (this color)
#242971
oklch(32.5% 0.122 274.3)
-
Step 950
950
#1C214C
oklch(27% 0.079 274.8)
#242971 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) | #003573 | 0.040 |
| Deuteranopia (no green cones) | #002E70 | 0.033 |
| Tritanopia (no blue cones) | #003B48 | 0.102 |
| Achromatopsia (no color) | #323232 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #242971
#242971
oklch(32.5% 0.122 274.3)
- #3F3300
#3F3300
oklch(32.5% 0.067 94.5)
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 #242971, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.043
- Marine #042E60 ΔE 0.046
- Marine Blue #01386A ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.061
- Twilight Blue #0A437A ΔE 0.072
- Royal #0C1793 ΔE 0.073
- Space Cadet #2B2D42 ΔE 0.087
- Dark Royal Blue #02066F ΔE 0.087
Use #242971 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.