#242D4E
Closest named color: Space Cadet (#2B2D42). oklch(30.6% 0.061 270.9), rgb(36, 45, 78).
Aa
White text reads best on this color (13.45:1).
About this color
#242D4E is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.061 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.024 away. White text reads best on it, at 13.45:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.56:1 |
| White text | 13.45:1 |
Values
| HEX | #242D4E |
| RGB | rgb(36, 45, 78) |
| HSL | hsl(227, 37%, 22%) |
| OKLCH | oklch(30.6% 0.061 270.9) |
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 #242D4E | 13.45:1 | AAA | Lc -103.0 | Preferred for body text |
| Black text on #242D4E | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #242D4E text on white | 13.45:1 | AAA | Lc 99.8 | Preferred for body text |
| #242D4E text on black | 1.56:1 | 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 950.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4E9F8
oklch(93.5% 0.021 271.2)
-
Step 200
200
#CFD8F4
oklch(88.4% 0.04 271.4)
-
Step 300
300
#AFBFF0
oklch(80.9% 0.072 270.6)
-
Step 400
400
#869CE9
oklch(70.7% 0.116 271.1)
-
Step 500
500
#6982E2
oklch(63.2% 0.147 270.7)
-
Step 600
600
#5269D0
oklch(55.7% 0.16 270.9)
-
Step 700
700
#4357B4
oklch(49.2% 0.149 270.9)
-
Step 800
800
#374792
oklch(42.7% 0.124 271.2)
-
Step 900
900
#2F3D74
oklch(37.8% 0.095 270.5)
-
Step 950
950 (this color)
#242D4E
oklch(30.6% 0.061 270.9)
#242D4E 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) | #20314F | 0.013 |
| Deuteranopia (no green cones) | #1C2D4D | 0.012 |
| Tritanopia (no blue cones) | #133439 | 0.055 |
| Achromatopsia (no color) | #2F2F2F | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #242D4E
#242D4E
oklch(30.6% 0.061 270.9)
- #3B2E02
#3B2E02
oklch(30.7% 0.061 91.2)
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 #242D4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.027
- Gunmetal #293241 ΔE 0.033
- Oxford Blue #1B263B ΔE 0.042
- Marine #042E60 ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.046
- Midnight Green #073B4C ΔE 0.051
- Marine Blue #01386A ΔE 0.058
Use #242D4E 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.