#12486D
Closest named color: Twilight Blue (#0A437A). oklch(38.7% 0.083 243.7), rgb(18, 72, 109).
Aa
White text reads best on this color (9.66:1).
About this color
#12486D is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.083 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.030 away. White text reads best on it, at 9.66:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.17:1 |
| White text | 9.66:1 |
Values
| HEX | #12486D |
| RGB | rgb(18, 72, 109) |
| HSL | hsl(204, 72%, 25%) |
| OKLCH | oklch(38.7% 0.083 243.7) |
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 #12486D | 9.66:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #12486D | 2.17:1 | Fails | Lc 11.9 | Not readable |
| #12486D text on white | 9.66:1 | AAA | Lc 92.1 | Preferred for body text |
| #12486D text on black | 2.17:1 | Fails | Lc -10.4 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DCEF
oklch(88.4% 0.035 244.2)
-
Step 300
300
#9FC6E7
oklch(81% 0.063 244.2)
-
Step 400
400
#67A8DA
oklch(70.8% 0.099 243)
-
Step 500
500
#3791D0
oklch(63.2% 0.127 243.2)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900 (this color)
#12486D
oklch(38.7% 0.083 243.7)
-
Step 950
950
#0B293E
oklch(27% 0.053 242.9)
#12486D 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) | #37496F | 0.038 |
| Deuteranopia (no green cones) | #2A416C | 0.027 |
| Tritanopia (no blue cones) | #005155 | 0.058 |
| Achromatopsia (no color) | #454545 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12486D
#12486D
oklch(38.7% 0.083 243.7)
- #623907
#623907
oklch(38.6% 0.083 64.2)
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 #12486D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.034
- Light Navy #155084 ΔE 0.043
- Charcoal #264653 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.045
- Marine Blue #01386A ΔE 0.053
- Cobalt #1E488F ΔE 0.059
- Deep Teal #00555A ΔE 0.061
Use #12486D 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.