#0F4683
Closest named color: Twilight Blue (#0A437A). oklch(39.6% 0.116 254.8), rgb(15, 70, 131).
Aa
White text reads best on this color (9.44:1).
About this color
#0F4683 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.116 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.017 away. White text reads best on it, at 9.44:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.22:1 |
| White text | 9.44:1 |
Values
| HEX | #0F4683 |
| RGB | rgb(15, 70, 131) |
| HSL | hsl(212, 79%, 29%) |
| OKLCH | oklch(39.6% 0.116 254.8) |
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 #0F4683 | 9.44:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #0F4683 | 2.22:1 | Fails | Lc 12.6 | Not readable |
| #0F4683 text on white | 9.44:1 | AAA | Lc 91.4 | Preferred for body text |
| #0F4683 text on black | 2.22:1 | Fails | Lc -11.0 | 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 900.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C4DBF9
oklch(88.4% 0.048 255.1)
-
Step 300
300
#9AC4F9
oklch(80.9% 0.088 254.5)
-
Step 400
400
#60A3F6
oklch(70.7% 0.14 254.7)
-
Step 500
500
#2D89F2
oklch(63.1% 0.179 254.8)
-
Step 600
600
#0071DA
oklch(55.6% 0.182 254.8)
-
Step 700
700
#005FB8
oklch(49.1% 0.16 254.6)
-
Step 800
800
#004D99
oklch(42.7% 0.14 255)
-
Step 900
900 (this color)
#0F4683
oklch(39.6% 0.116 254.8)
-
Step 950
950
#082649
oklch(26.9% 0.074 254.8)
#0F4683 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) | #254B85 | 0.024 |
| Deuteranopia (no green cones) | #094182 | 0.015 |
| Tritanopia (no blue cones) | #00555E | 0.088 |
| Achromatopsia (no color) | #464646 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F4683
#0F4683
oklch(39.6% 0.116 254.8)
- #603F00
#603F00
oklch(39.6% 0.083 75.5)
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 #0F4683, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.017
- Cobalt #1E488F ΔE 0.024
- Light Navy #155084 ΔE 0.031
- Deep Sea Blue #015482 ΔE 0.042
- Dusk Blue #26538D ΔE 0.046
- Marine Blue #01386A ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.068
- Light Navy Blue #2E5A88 ΔE 0.068
Use #0F4683 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.