#0D2239
Closest named color: Oxford Blue (#1B263B). oklch(24.8% 0.052 252.5), rgb(13, 34, 57).
Aa
White text reads best on this color (16.09:1).
About this color
#0D2239 is a very dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.052 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.025 away. White text reads best on it, at 16.09:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.30:1 |
| White text | 16.09:1 |
Values
| HEX | #0D2239 |
| RGB | rgb(13, 34, 57) |
| HSL | hsl(211, 63%, 14%) |
| OKLCH | oklch(24.8% 0.052 252.5) |
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 #0D2239 | 16.09:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #0D2239 | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #0D2239 text on white | 16.09:1 | AAA | Lc 102.9 | Preferred for body text |
| #0D2239 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A5C4E8
oklch(81% 0.061 252.4)
-
Step 400
400
#73A4DC
oklch(70.6% 0.098 252.5)
-
Step 500
500
#4D8CD3
oklch(63% 0.126 252.9)
-
Step 600
600
#2E75C0
oklch(55.6% 0.136 252.6)
-
Step 700
700
#2062A6
oklch(49.1% 0.127 252.6)
-
Step 800
800
#1D5086
oklch(42.6% 0.105 252.7)
-
Step 900
900
#1E436B
oklch(37.7% 0.081 252.3)
-
Step 950
950 (this color)
#0D2239
oklch(24.8% 0.052 252.5)
#0D2239 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) | #18233A | 0.015 |
| Deuteranopia (no green cones) | #121F39 | 0.011 |
| Tritanopia (no blue cones) | #00272A | 0.041 |
| Achromatopsia (no color) | #212121 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D2239
#0D2239
oklch(24.8% 0.052 252.5)
- #301C01
#301C01
oklch(24.7% 0.052 71.3)
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 #0D2239, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.025
- Dark #1B2431 ΔE 0.026
- Rich Black #0D1B2A ΔE 0.034
- Jet #212529 ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.062
- Navy Blue #001146 ΔE 0.064
- Gunmetal #293241 ΔE 0.071
- Marine #042E60 ΔE 0.076
Use #0D2239 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.