#24285A
Closest named color: Marine (#042E60). oklch(30.3% 0.088 276.3), rgb(36, 40, 90).
Aa
White text reads best on this color (13.75:1).
About this color
#24285A is a dark, moderately saturated blue. In OKLCH its lightness is 30%, its chroma 0.088 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.035 away. White text reads best on it, at 13.75:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.52:1 |
| White text | 13.75:1 |
Values
| HEX | #24285A |
| RGB | rgb(36, 40, 90) |
| HSL | hsl(236, 43%, 25%) |
| OKLCH | oklch(30.3% 0.088 276.3) |
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 #24285A | 13.75:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #24285A | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #24285A text on white | 13.75:1 | AAA | Lc 100.2 | Preferred for body text |
| #24285A text on black | 1.52:1 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E9FF
oklch(93.7% 0.03 275.6)
-
Step 200
200
#CFD7FF
oklch(88.6% 0.056 276.3)
-
Step 300
300
#B0BCFF
oklch(81% 0.096 276.2)
-
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
#5856F7
oklch(55.7% 0.233 276.3)
-
Step 700
700
#4944D7
oklch(49.1% 0.216 276.3)
-
Step 800
800
#3B3AAE
oklch(42.8% 0.179 276.1)
-
Step 900
900
#323489
oklch(37.8% 0.139 276.5)
-
Step 950
950 (this color)
#24285A
oklch(30.3% 0.088 276.3)
#24285A 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) | #0D2F5C | 0.030 |
| Deuteranopia (no green cones) | #052B59 | 0.033 |
| Tritanopia (no blue cones) | #07333C | 0.078 |
| Achromatopsia (no color) | #2D2D2D | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24285A
#24285A
oklch(30.3% 0.088 276.3)
- #382E00
#382E00
oklch(30.3% 0.062 96)
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 #24285A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.051
- Marine Blue #01386A ΔE 0.055
- Midnight Blue #191970 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.059
- Gunmetal #293241 ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.069
Use #24285A 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.