#24315B
Closest named color: Prussian Blue (#1D3557). oklch(32.5% 0.077 268.9), rgb(36, 49, 91).
Aa
White text reads best on this color (12.60:1).
About this color
#24315B is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.077 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.017 away. White text reads best on it, at 12.60:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.66:1 |
| White text | 12.60:1 |
Values
| HEX | #24315B |
| RGB | rgb(36, 49, 91) |
| HSL | hsl(226, 43%, 25%) |
| OKLCH | oklch(32.5% 0.077 268.9) |
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 #24315B | 12.60:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #24315B | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #24315B text on white | 12.60:1 | AAA | Lc 98.5 | Preferred for body text |
| #24315B text on black | 1.66:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EF
oklch(88.5% 0.032 268)
-
Step 300
300
#B1C0E7
oklch(80.9% 0.058 268.6)
-
Step 400
400
#899EDB
oklch(70.7% 0.093 269.3)
-
Step 500
500
#6C85D1
oklch(63% 0.118 269)
-
Step 600
600
#556EBE
oklch(55.7% 0.128 268.9)
-
Step 700
700
#455BA4
oklch(49% 0.12 269)
-
Step 800
800
#394B85
oklch(42.8% 0.099 269)
-
Step 900
900 (this color)
#24315B
oklch(32.5% 0.077 268.9)
-
Step 950
950
#1D253E
oklch(27% 0.048 269.5)
#24315B 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) | #1F365D | 0.016 |
| Deuteranopia (no green cones) | #18315A | 0.015 |
| Tritanopia (no blue cones) | #043A41 | 0.068 |
| Achromatopsia (no color) | #333333 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24315B
#24315B
oklch(32.5% 0.077 268.9)
- #423200
#423200
oklch(32.6% 0.067 89.1)
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 #24315B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.017
- Marine #042E60 ΔE 0.035
- Marine Blue #01386A ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.046
- Gunmetal #293241 ΔE 0.048
- Midnight Green #073B4C ΔE 0.053
- Oxford Blue #1B263B ΔE 0.066
Use #24315B 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.