#0A2449
Closest named color: Oxford Blue (#1B263B). oklch(26.4% 0.076 257.9), rgb(10, 36, 73).
Aa
White text reads best on this color (15.42:1).
About this color
#0A2449 is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.076 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.034 away. White text reads best on it, at 15.42:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.42:1 |
Values
| HEX | #0A2449 |
| RGB | rgb(10, 36, 73) |
| HSL | hsl(215, 76%, 16%) |
| OKLCH | oklch(26.4% 0.076 257.9) |
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 #0A2449 | 15.42:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #0A2449 | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #0A2449 text on white | 15.42:1 | AAA | Lc 102.1 | Preferred for body text |
| #0A2449 text on black | 1.36:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFB
oklch(88.5% 0.05 257.7)
-
Step 300
300
#9DC3FB
oklch(81% 0.09 258)
-
Step 400
400
#65A1F9
oklch(70.7% 0.144 257.9)
-
Step 500
500
#3886F6
oklch(63% 0.184 258.1)
-
Step 600
600
#0A6DE5
oklch(55.7% 0.2 257.9)
-
Step 700
700
#005AC4
oklch(49% 0.181 258)
-
Step 800
800
#044AA1
oklch(42.7% 0.154 258)
-
Step 900
900
#103F80
oklch(37.7% 0.121 258)
-
Step 950
950 (this color)
#0A2449
oklch(26.4% 0.076 257.9)
#0A2449 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) | #10284A | 0.015 |
| Deuteranopia (no green cones) | #042248 | 0.009 |
| Tritanopia (no blue cones) | #002D32 | 0.060 |
| Achromatopsia (no color) | #252525 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A2449
#0A2449
oklch(26.4% 0.076 257.9)
- #332100
#332100
oklch(26.4% 0.055 78.7)
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 #0A2449, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.034
- Dark #1B2431 ΔE 0.048
- Marine #042E60 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.059
- Navy Blue #001146 ΔE 0.060
- Rich Black #0D1B2A ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.064
- Jet #212529 ΔE 0.067
Use #0A2449 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.