#0F3549
Closest named color: Midnight Green (#073B4C). oklch(31.3% 0.055 235.6), rgb(15, 53, 73).
Aa
White text reads best on this color (12.91:1).
About this color
#0F3549 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.055 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.019 away. White text reads best on it, at 12.91:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.62:1 |
| White text | 12.91:1 |
Values
| HEX | #0F3549 |
| RGB | rgb(15, 53, 73) |
| HSL | hsl(201, 66%, 17%) |
| OKLCH | oklch(31.3% 0.055 235.6) |
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 #0F3549 | 12.91:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #0F3549 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #0F3549 text on white | 12.91:1 | AAA | Lc 98.9 | Preferred for body text |
| #0F3549 text on black | 1.62:1 | 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
#DEECF5
oklch(93.5% 0.019 235.7)
-
Step 200
200
#C3DEEE
oklch(88.6% 0.036 233.8)
-
Step 300
300
#98C8E5
oklch(80.9% 0.065 235.2)
-
Step 400
400
#59ABD9
oklch(70.8% 0.105 235.5)
-
Step 500
500
#0794CF
oklch(63.1% 0.134 236)
-
Step 600
600
#007DAF
oklch(55.7% 0.119 235.4)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#004766
oklch(37.6% 0.081 235.8)
-
Step 950
950 (this color)
#0F3549
oklch(31.3% 0.055 235.6)
#0F3549 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) | #2B354A | 0.033 |
| Deuteranopia (no green cones) | #232F49 | 0.027 |
| Tritanopia (no blue cones) | #003A3C | 0.035 |
| Achromatopsia (no color) | #313131 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F3549
#0F3549
oklch(31.3% 0.055 235.6)
- #462913
#462913
oklch(31.3% 0.055 56.2)
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 #0F3549, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.019
- Dark Blue Grey #1F3B4D ΔE 0.028
- Prussian Blue #1D3557 ΔE 0.030
- Gunmetal #293241 ΔE 0.031
- Space Cadet #2B2D42 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.051
- Marine #042E60 ΔE 0.052
- Onyx #343A40 ΔE 0.053
Use #0F3549 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.