#18496B
Closest named color: Dark Grey Blue (#29465B). oklch(39% 0.078 242.9), rgb(24, 73, 107).
Aa
White text reads best on this color (9.52:1).
About this color
#18496B is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.078 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 9.52:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #18496B |
| RGB | rgb(24, 73, 107) |
| HSL | hsl(205, 63%, 26%) |
| OKLCH | oklch(39% 0.078 242.9) |
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 #18496B | 9.52:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #18496B | 2.20:1 | Fails | Lc 12.2 | Not readable |
| #18496B text on white | 9.52:1 | AAA | Lc 91.8 | Preferred for body text |
| #18496B text on black | 2.20:1 | 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
#A1C6E4
oklch(81% 0.058 243)
-
Step 400
400
#6BA7D6
oklch(70.6% 0.093 243.3)
-
Step 500
500
#3E91CB
oklch(63.2% 0.118 242.5)
-
Step 600
600
#117AB8
oklch(55.6% 0.129 242.8)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#085481
oklch(42.8% 0.1 242.9)
-
Step 900
900 (this color)
#18496B
oklch(39% 0.078 242.9)
-
Step 950
950
#0E293C
oklch(27% 0.048 242.2)
#18496B 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) | #394A6C | 0.036 |
| Deuteranopia (no green cones) | #2E426A | 0.028 |
| Tritanopia (no blue cones) | #005155 | 0.054 |
| Achromatopsia (no color) | #454545 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18496B
#18496B
oklch(39% 0.078 242.9)
- #623B11
#623B11
oklch(39.1% 0.078 63.3)
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 #18496B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Twilight Blue #0A437A ΔE 0.036
- Charcoal #264653 ΔE 0.041
- Light Navy #155084 ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.045
- Deep Teal #00555A ΔE 0.056
- Marine Blue #01386A ΔE 0.058
- Dark Teal #014D4E ΔE 0.058
Use #18496B 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.