#0D234A
Closest named color: Oxford Blue (#1B263B). oklch(26.4% 0.078 260.9), rgb(13, 35, 74).
Aa
White text reads best on this color (15.48:1).
About this color
#0D234A is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.078 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.036 away. White text reads best on it, at 15.48:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.35:1 |
| White text | 15.48:1 |
Values
| HEX | #0D234A |
| RGB | rgb(13, 35, 74) |
| HSL | hsl(218, 70%, 17%) |
| OKLCH | oklch(26.4% 0.078 260.9) |
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 #0D234A | 15.48:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #0D234A | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #0D234A text on white | 15.48:1 | AAA | Lc 102.2 | Preferred for body text |
| #0D234A text on black | 1.35:1 | 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
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFC
oklch(88.4% 0.052 261.1)
-
Step 300
300
#9FC2FD
oklch(81% 0.092 260.7)
-
Step 400
400
#6A9FFC
oklch(70.7% 0.148 261)
-
Step 500
500
#4184F9
oklch(63.1% 0.188 260.7)
-
Step 600
600
#216AE8
oklch(55.7% 0.204 260.8)
-
Step 700
700
#1457CA
oklch(49.1% 0.19 260.9)
-
Step 800
800
#1348A3
oklch(42.7% 0.157 260.7)
-
Step 900
900
#173D81
oklch(37.5% 0.123 261)
-
Step 950
950 (this color)
#0D234A
oklch(26.4% 0.078 260.9)
#0D234A 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) | #0E274B | 0.013 |
| Deuteranopia (no green cones) | #012249 | 0.012 |
| Tritanopia (no blue cones) | #002C32 | 0.062 |
| Achromatopsia (no color) | #242424 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D234A
#0D234A
oklch(26.4% 0.078 260.9)
- #322100
#322100
oklch(26.2% 0.054 80.3)
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 #0D234A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.036
- Marine #042E60 ΔE 0.049
- Dark #1B2431 ΔE 0.050
- Navy Blue #001146 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.060
- Rich Black #0D1B2A ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.065
- Dark Indigo #1F0954 ΔE 0.066
Use #0D234A 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.