#0F4072
Closest named color: Twilight Blue (#0A437A). oklch(36.9% 0.1 252.9), rgb(15, 64, 114).
Aa
White text reads best on this color (10.51:1).
About this color
#0F4072 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.100 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.015 away. White text reads best on it, at 10.51:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.99:1 |
| White text | 10.51:1 |
Values
| HEX | #0F4072 |
| RGB | rgb(15, 64, 114) |
| HSL | hsl(210, 77%, 25%) |
| OKLCH | oklch(36.9% 0.1 252.9) |
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 #0F4072 | 10.51:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #0F4072 | 1.99:1 | Fails | Lc 9.9 | Not readable |
| #0F4072 text on white | 10.51:1 | AAA | Lc 94.0 | Preferred for body text |
| #0F4072 text on black | 1.99:1 | Fails | Lc -8.6 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C6DBF5
oklch(88.4% 0.042 253.8)
-
Step 300
300
#9FC4F0
oklch(80.9% 0.074 253.1)
-
Step 400
400
#68A4E9
oklch(70.7% 0.12 252.9)
-
Step 500
500
#3B8BE3
oklch(63% 0.154 253.3)
-
Step 600
600
#0C73D1
oklch(55.5% 0.167 253.1)
-
Step 700
700
#0061B3
oklch(49.2% 0.151 252.8)
-
Step 800
800
#054F92
oklch(42.7% 0.128 252.9)
-
Step 900
900 (this color)
#0F4072
oklch(36.9% 0.1 252.9)
-
Step 950
950
#0D2744
oklch(27% 0.063 253.3)
#0F4072 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) | #274474 | 0.026 |
| Deuteranopia (no green cones) | #153B71 | 0.015 |
| Tritanopia (no blue cones) | #004C53 | 0.074 |
| Achromatopsia (no color) | #3F3F3F | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F4072
#0F4072
oklch(36.9% 0.1 252.9)
- #583800
#583800
oklch(37% 0.078 73.6)
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 #0F4072, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.015
- Marine Blue #01386A ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.053
- Light Navy #155084 ΔE 0.054
- Cobalt #1E488F ΔE 0.055
- Deep Sea Blue #015482 ΔE 0.062
- Marine #042E60 ΔE 0.062
Use #0F4072 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.