#0D203E
Closest named color: Oxford Blue (#1B263B). oklch(24.6% 0.062 259.2), rgb(13, 32, 62).
Aa
White text reads best on this color (16.23:1).
About this color
#0D203E is a very dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.062 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.031 away. White text reads best on it, at 16.23:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.29:1 |
| White text | 16.23:1 |
Values
| HEX | #0D203E |
| RGB | rgb(13, 32, 62) |
| HSL | hsl(217, 65%, 15%) |
| OKLCH | oklch(24.6% 0.062 259.2) |
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 #0D203E | 16.23:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #0D203E | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #0D203E text on white | 16.23:1 | AAA | Lc 103.0 | Preferred for body text |
| #0D203E text on black | 1.29:1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C9DAF5
oklch(88.4% 0.042 259.6)
-
Step 300
300
#A4C2F1
oklch(80.8% 0.074 259.3)
-
Step 400
400
#73A1EA
oklch(70.6% 0.119 259.3)
-
Step 500
500
#4E88E4
oklch(63.1% 0.152 259.3)
-
Step 600
600
#3170D1
oklch(55.7% 0.163 259)
-
Step 700
700
#245DB5
oklch(49.1% 0.152 259.1)
-
Step 800
800
#1F4C93
oklch(42.7% 0.127 259.3)
-
Step 900
900
#1F4075
oklch(37.7% 0.099 259.5)
-
Step 950
950 (this color)
#0D203E
oklch(24.6% 0.062 259.2)
#0D203E 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) | #12233F | 0.013 |
| Deuteranopia (no green cones) | #0A1E3D | 0.008 |
| Tritanopia (no blue cones) | #00272B | 0.051 |
| Achromatopsia (no color) | #202020 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D203E
#0D203E
oklch(24.6% 0.062 259.2)
- #2E1D00
#2E1D00
oklch(24.6% 0.051 77.8)
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 #0D203E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.031
- Dark #1B2431 ΔE 0.037
- Rich Black #0D1B2A ΔE 0.040
- Navy Blue #001146 ΔE 0.054
- Jet #212529 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.066
- Marine #042E60 ΔE 0.071
- Dark Indigo #1F0954 ΔE 0.072
Use #0D203E 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.