#18496A
Closest named color: Dark Grey Blue (#29465B). oklch(38.9% 0.076 242.2), rgb(24, 73, 106).
Aa
White text reads best on this color (9.54:1).
About this color
#18496A is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.076 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 9.54:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.19:1 |
| White text | 9.54:1 |
Values
| HEX | #18496A |
| RGB | rgb(24, 73, 106) |
| HSL | hsl(204, 63%, 25%) |
| OKLCH | oklch(38.9% 0.076 242.2) |
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 #18496A | 9.54:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #18496A | 2.19:1 | Fails | Lc 12.1 | Not readable |
| #18496A text on white | 9.54:1 | AAA | Lc 91.8 | Preferred for body text |
| #18496A text on black | 2.19:1 | Fails | Lc -10.6 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCED
oklch(88.5% 0.032 243.7)
-
Step 300
300
#A1C6E3
oklch(80.9% 0.057 242)
-
Step 400
400
#6BA8D5
oklch(70.8% 0.092 241.7)
-
Step 500
500
#3F91CA
oklch(63.1% 0.117 242.3)
-
Step 600
600
#117AB7
oklch(55.6% 0.128 242.3)
-
Step 700
700
#00679D
oklch(49.2% 0.117 242)
-
Step 800
800
#085480
oklch(42.8% 0.098 242.3)
-
Step 900
900 (this color)
#18496A
oklch(38.9% 0.076 242.2)
-
Step 950
950
#0E293C
oklch(27% 0.048 242.2)
#18496A 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) | #3A4A6B | 0.037 |
| Deuteranopia (no green cones) | #2E4269 | 0.028 |
| Tritanopia (no blue cones) | #005155 | 0.052 |
| Achromatopsia (no color) | #454545 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18496A
#18496A
oklch(38.9% 0.076 242.2)
- #613A13
#613A13
oklch(38.8% 0.076 61.8)
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 #18496A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Twilight Blue #0A437A ΔE 0.037
- Charcoal #264653 ΔE 0.039
- Light Navy #155084 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.046
- Deep Teal #00555A ΔE 0.055
- Dark Teal #014D4E ΔE 0.057
- Marine Blue #01386A ΔE 0.058
Use #18496A 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.