#163763
Closest named color: Marine Blue (#01386A). oklch(33.8% 0.087 256.6), rgb(22, 55, 99).
Aa
White text reads best on this color (11.92:1).
About this color
#163763 is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.087 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.017 away. White text reads best on it, at 11.92:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.76:1 |
| White text | 11.92:1 |
Values
| HEX | #163763 |
| RGB | rgb(22, 55, 99) |
| HSL | hsl(214, 64%, 24%) |
| OKLCH | oklch(33.8% 0.087 256.6) |
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 #163763 | 11.92:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #163763 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #163763 text on white | 11.92:1 | AAA | Lc 97.0 | Preferred for body text |
| #163763 text on black | 1.76:1 | Fails | Lc 0.0 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADBF1
oklch(88.6% 0.035 254.9)
-
Step 300
300
#A6C3EB
oklch(80.9% 0.065 256.5)
-
Step 400
400
#76A3E1
oklch(70.8% 0.104 256.6)
-
Step 500
500
#518AD8
oklch(63% 0.133 256.7)
-
Step 600
600
#3473C6
oklch(55.7% 0.144 256.4)
-
Step 700
700
#2660AB
oklch(49.2% 0.134 256.3)
-
Step 800
800
#214E8A
oklch(42.5% 0.111 256.7)
-
Step 900
900 (this color)
#163763
oklch(33.8% 0.087 256.6)
-
Step 950
950
#142741
oklch(27.1% 0.055 256.6)
#163763 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) | #223B65 | 0.019 |
| Deuteranopia (no green cones) | #153462 | 0.009 |
| Tritanopia (no blue cones) | #004148 | 0.066 |
| Achromatopsia (no color) | #373737 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #163763
#163763
oklch(33.8% 0.087 256.6)
- #4C3100
#4C3100
oklch(33.7% 0.071 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 #163763, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.017
- Prussian Blue #1D3557 ΔE 0.021
- Marine #042E60 ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.045
- Midnight Green #073B4C ΔE 0.048
- Twilight Blue #0A437A ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.059
- Gunmetal #293241 ΔE 0.061
Use #163763 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.