#0D1F48
Closest named color: Oxford Blue (#1B263B). oklch(25.2% 0.08 263.8), rgb(13, 31, 72).
Aa
White text reads best on this color (16.07:1).
About this color
#0D1F48 is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.080 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.042 away. White text reads best on it, at 16.07:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.30:1 |
| White text | 16.07:1 |
Values
| HEX | #0D1F48 |
| RGB | rgb(13, 31, 72) |
| HSL | hsl(222, 69%, 17%) |
| OKLCH | oklch(25.2% 0.08 263.8) |
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 #0D1F48 | 16.07:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #0D1F48 | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #0D1F48 text on white | 16.07:1 | AAA | Lc 102.8 | Preferred for body text |
| #0D1F48 text on black | 1.30:1 | 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
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFD
oklch(88.5% 0.053 262.7)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400
#6F9DFF
oklch(70.7% 0.152 263.9)
-
Step 500
500
#4A81FD
oklch(63.1% 0.194 263.8)
-
Step 600
600
#2E66ED
oklch(55.6% 0.212 263.8)
-
Step 700
700
#2254CE
oklch(49.2% 0.196 263.7)
-
Step 800
800
#1D45A6
oklch(42.6% 0.163 263.8)
-
Step 900
900
#1D3C84
oklch(37.8% 0.127 263.8)
-
Step 950
950 (this color)
#0D1F48
oklch(25.2% 0.08 263.8)
#0D1F48 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) | #062449 | 0.016 |
| Deuteranopia (no green cones) | #001F47 | 0.013 |
| Tritanopia (no blue cones) | #002930 | 0.064 |
| Achromatopsia (no color) | #212121 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D1F48
#0D1F48
oklch(25.2% 0.08 263.8)
- #2E1F00
#2E1F00
oklch(25.1% 0.052 82.4)
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 #0D1F48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.042
- Navy Blue #001146 ΔE 0.047
- Dark #1B2431 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.058
- Dark Indigo #1F0954 ΔE 0.058
- Marine #042E60 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.070
- Darkblue #030764 ΔE 0.072
Use #0D1F48 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.