#0F4567
Closest named color: Dark Grey Blue (#29465B). oklch(37.4% 0.079 241.9), rgb(15, 69, 103).
Aa
White text reads best on this color (10.15:1).
About this color
#0F4567 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.079 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.030 away. White text reads best on it, at 10.15:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #0F4567 |
| RGB | rgb(15, 69, 103) |
| HSL | hsl(203, 75%, 23%) |
| OKLCH | oklch(37.4% 0.079 241.9) |
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 #0F4567 | 10.15:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #0F4567 | 2.06:1 | Fails | Lc 10.7 | Not readable |
| #0F4567 text on white | 10.15:1 | AAA | Lc 93.2 | Preferred for body text |
| #0F4567 text on black | 2.06:1 | Fails | Lc -9.3 | 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 900.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C7DCEE
oklch(88.4% 0.034 244)
-
Step 300
300
#9FC6E4
oklch(80.9% 0.06 241.6)
-
Step 400
400
#68A8D7
oklch(70.7% 0.095 241.7)
-
Step 500
500
#3991CC
oklch(63% 0.122 241.9)
-
Step 600
600
#007AB9
oklch(55.5% 0.132 242.1)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900 (this color)
#0F4567
oklch(37.4% 0.079 241.9)
-
Step 950
950
#0C293D
oklch(27% 0.051 242.2)
#0F4567 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) | #354668 | 0.038 |
| Deuteranopia (no green cones) | #293E66 | 0.029 |
| Tritanopia (no blue cones) | #004D51 | 0.053 |
| Achromatopsia (no color) | #414141 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F4567
#0F4567
oklch(37.4% 0.079 241.9)
- #5E360A
#5E360A
oklch(37.5% 0.079 62.3)
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 #0F4567, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.030
- Twilight Blue #0A437A ΔE 0.035
- Charcoal #264653 ΔE 0.039
- Marine Blue #01386A ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.052
- Midnight Green #073B4C ΔE 0.053
- Light Navy #155084 ΔE 0.056
Use #0F4567 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.