#0D3148
Closest named color: Midnight Green (#073B4C). oklch(30% 0.058 240.9), rgb(13, 49, 72).
Aa
White text reads best on this color (13.54:1).
About this color
#0D3148 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.058 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.033 away. White text reads best on it, at 13.54:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.55:1 |
| White text | 13.54:1 |
Values
| HEX | #0D3148 |
| RGB | rgb(13, 49, 72) |
| HSL | hsl(203, 69%, 17%) |
| OKLCH | oklch(30% 0.058 240.9) |
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 #0D3148 | 13.54:1 | AAA | Lc -103.0 | Preferred for body text |
| Black text on #0D3148 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #0D3148 text on white | 13.54:1 | AAA | Lc 99.8 | Preferred for body text |
| #0D3148 text on black | 1.55:1 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C4DDF0
oklch(88.5% 0.037 240.7)
-
Step 300
300
#99C7E9
oklch(80.9% 0.068 240.7)
-
Step 400
400
#5CA9DF
oklch(70.7% 0.11 241.2)
-
Step 500
500
#1992D6
oklch(63.1% 0.141 241.1)
-
Step 600
600
#007BB7
oklch(55.7% 0.129 240.7)
-
Step 700
700
#00679B
oklch(49.1% 0.115 241)
-
Step 800
800
#005480
oklch(42.6% 0.1 241.3)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950 (this color)
#0D3148
oklch(30% 0.058 240.9)
#0D3148 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) | #263149 | 0.029 |
| Deuteranopia (no green cones) | #1E2C48 | 0.023 |
| Tritanopia (no blue cones) | #003739 | 0.040 |
| Achromatopsia (no color) | #2E2E2E | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D3148
#0D3148
oklch(30% 0.058 240.9)
- #42260B
#42260B
oklch(29.9% 0.058 61.1)
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 #0D3148, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.034
- Gunmetal #293241 ΔE 0.035
- Space Cadet #2B2D42 ΔE 0.037
- Oxford Blue #1B263B ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.040
- Marine #042E60 ΔE 0.046
- Dark #1B2431 ΔE 0.053
Use #0D3148 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.