#0A2754
Closest named color: Marine (#042E60). oklch(28.1% 0.089 259.3), rgb(10, 39, 84).
Aa
White text reads best on this color (14.67:1).
About this color
#0A2754 is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.089 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.028 away. White text reads best on it, at 14.67:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.43:1 |
| White text | 14.67:1 |
Values
| HEX | #0A2754 |
| RGB | rgb(10, 39, 84) |
| HSL | hsl(216, 79%, 18%) |
| OKLCH | oklch(28.1% 0.089 259.3) |
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 #0A2754 | 14.67:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #0A2754 | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #0A2754 text on white | 14.67:1 | AAA | Lc 101.2 | Preferred for body text |
| #0A2754 text on black | 1.43:1 | 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
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C3DBFF
oklch(88.5% 0.056 258.4)
-
Step 300
300
#9BC2FF
oklch(80.8% 0.097 259.2)
-
Step 400
400
#64A0FF
oklch(70.8% 0.153 259.2)
-
Step 500
500
#3484FF
oklch(63.1% 0.199 259.1)
-
Step 600
600
#0069EF
oklch(55.6% 0.218 259.2)
-
Step 700
700
#0058CB
oklch(49.1% 0.193 259.2)
-
Step 800
800
#0047A8
oklch(42.6% 0.168 259.4)
-
Step 900
900
#063C8A
oklch(37.6% 0.141 259.3)
-
Step 950
950 (this color)
#0A2754
oklch(28.1% 0.089 259.3)
#0A2754 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) | #0C2C56 | 0.016 |
| Deuteranopia (no green cones) | #002553 | 0.012 |
| Tritanopia (no blue cones) | #003239 | 0.069 |
| Achromatopsia (no color) | #282828 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A2754
#0A2754
oklch(28.1% 0.089 259.3)
- #382500
#382500
oklch(28.1% 0.058 79.5)
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 #0A2754, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.028
- Oxford Blue #1B263B ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.060
- Marine Blue #01386A ΔE 0.061
- Midnight Blue #191970 ΔE 0.061
- Dark #1B2431 ΔE 0.065
- Gunmetal #293241 ΔE 0.069
Use #0A2754 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.