#0F3147
Closest named color: Midnight Green (#073B4C). oklch(30% 0.056 240.7), rgb(15, 49, 71).
Aa
White text reads best on this color (13.54:1).
About this color
#0F3147 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.056 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 (0.056) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.55:1 |
| White text | 13.54:1 |
Values
| HEX | #0F3147 |
| RGB | rgb(15, 49, 71) |
| HSL | hsl(204, 65%, 17%) |
| OKLCH | oklch(30% 0.056 240.7) |
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 #0F3147 | 13.54:1 | AAA | Lc -103.0 | Preferred for body text |
| Black text on #0F3147 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #0F3147 text on white | 13.54:1 | AAA | Lc 99.8 | Preferred for body text |
| #0F3147 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
#9BC7E8
oklch(81% 0.066 241)
-
Step 400
400
#5FA9DC
oklch(70.7% 0.105 240.6)
-
Step 500
500
#2392D3
oklch(63.1% 0.135 240.9)
-
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)
#0F3147
oklch(30% 0.056 240.7)
#0F3147 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) | #273148 | 0.029 |
| Deuteranopia (no green cones) | #1F2C47 | 0.022 |
| Tritanopia (no blue cones) | #003639 | 0.037 |
| Achromatopsia (no color) | #2E2E2E | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F3147
#0F3147
oklch(30% 0.056 240.7)
- #42270D
#42270D
oklch(30.1% 0.056 61.6)
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 #0F3147, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.033
- Gunmetal #293241 ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.035
- Space Cadet #2B2D42 ΔE 0.036
- Oxford Blue #1B263B ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.040
- Marine #042E60 ΔE 0.048
- Dark #1B2431 ΔE 0.052
Use #0F3147 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.