#24316B
Closest named color: Marine Blue (#01386A). oklch(33.7% 0.102 270.5), rgb(36, 49, 107).
Aa
White text reads best on this color (12.16:1).
About this color
#24316B is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.102 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.032 away. White text reads best on it, at 12.16:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.72:1 |
| White text | 12.16:1 |
Values
| HEX | #24316B |
| RGB | rgb(36, 49, 107) |
| HSL | hsl(229, 50%, 28%) |
| OKLCH | oklch(33.7% 0.102 270.5) |
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 #24316B | 12.16:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #24316B | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #24316B text on white | 12.16:1 | AAA | Lc 97.5 | Preferred for body text |
| #24316B text on black | 1.72:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CED8F6
oklch(88.4% 0.043 270.9)
-
Step 300
300
#AEBFF3
oklch(81% 0.076 270.6)
-
Step 400
400
#849CED
oklch(70.8% 0.122 270.5)
-
Step 500
500
#6681E7
oklch(63.1% 0.156 270.3)
-
Step 600
600
#4F68D5
oklch(55.6% 0.169 270.3)
-
Step 700
700
#4056B9
oklch(49.2% 0.158 270.2)
-
Step 800
800
#354796
oklch(42.8% 0.131 270.3)
-
Step 900
900 (this color)
#24316B
oklch(33.7% 0.102 270.5)
-
Step 950
950
#1B2446
oklch(27.1% 0.064 270.5)
#24316B 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) | #0F396D | 0.028 |
| Deuteranopia (no green cones) | #00336A | 0.031 |
| Tritanopia (no blue cones) | #003E49 | 0.085 |
| Achromatopsia (no color) | #363636 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24316B
#24316B
oklch(33.7% 0.102 270.5)
- #453500
#453500
oklch(33.7% 0.069 90)
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 #24316B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.032
- Marine #042E60 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.040
- Twilight Blue #0A437A ΔE 0.055
- Midnight Blue #191970 ΔE 0.064
- Dark Blue Grey #1F3B4D ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.072
- Midnight Green #073B4C ΔE 0.074
Use #24316B 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.