#0A244F
Closest named color: Marine (#042E60). oklch(26.9% 0.085 260), rgb(10, 36, 79).
Aa
White text reads best on this color (15.23:1).
About this color
#0A244F is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.085 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.041 away. White text reads best on it, at 15.23:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.37:1 |
| White text | 15.23:1 |
Values
| HEX | #0A244F |
| RGB | rgb(10, 36, 79) |
| HSL | hsl(217, 78%, 17%) |
| OKLCH | oklch(26.9% 0.085 260) |
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 #0A244F | 15.23:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #0A244F | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #0A244F text on white | 15.23:1 | AAA | Lc 101.9 | Preferred for body text |
| #0A244F text on black | 1.37:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFE
oklch(93.7% 0.029 259.6)
-
Step 200
200
#C4DAFF
oklch(88.4% 0.057 260.8)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#669FFF
oklch(70.7% 0.154 260.3)
-
Step 500
500
#3883FF
oklch(63% 0.199 260)
-
Step 600
600
#0467F3
oklch(55.5% 0.225 260.1)
-
Step 700
700
#0056CF
oklch(49.1% 0.2 260)
-
Step 800
800
#0146AB
oklch(42.6% 0.173 260)
-
Step 900
900
#0E3D87
oklch(37.8% 0.134 259.8)
-
Step 950
950 (this color)
#0A244F
oklch(26.9% 0.085 260)
#0A244F 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) | #0A2951 | 0.016 |
| Deuteranopia (no green cones) | #00234E | 0.010 |
| Tritanopia (no blue cones) | #002E35 | 0.066 |
| Achromatopsia (no color) | #252525 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A244F
#0A244F
oklch(26.9% 0.085 260)
- #342300
#342300
oklch(27% 0.056 81.4)
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 #0A244F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.041
- Oxford Blue #1B263B ΔE 0.043
- Dark #1B2431 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.061
- Navy Blue #001146 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.063
- Midnight Blue #191970 ΔE 0.066
- Dark Indigo #1F0954 ΔE 0.066
Use #0A244F 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.