#102C73
Closest named color: Marine (#042E60). oklch(32.3% 0.127 264.1), rgb(16, 44, 115).
Aa
White text reads best on this color (12.88:1).
About this color
#102C73 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.127 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.036 away. White text reads best on it, at 12.88:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.62:1 |
| White text | 12.88:1 |
Values
| HEX | #102C73 |
| RGB | rgb(16, 44, 115) |
| HSL | hsl(223, 76%, 26%) |
| OKLCH | oklch(32.3% 0.127 264.1) |
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 #102C73 | 12.88:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #102C73 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #102C73 text on white | 12.88:1 | AAA | Lc 98.5 | Preferred for body text |
| #102C73 text on black | 1.62:1 | 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 950.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C7DAFF
oklch(88.6% 0.055 263.7)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400
#6F9DFF
oklch(70.7% 0.152 263.9)
-
Step 500
500
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600
#245FFF
oklch(55.6% 0.245 264.2)
-
Step 700
700
#0138FF
oklch(49.1% 0.287 264.1)
-
Step 800
800
#002AD7
oklch(42.7% 0.255 264.1)
-
Step 900
900
#052CA9
oklch(37.7% 0.2 264.2)
-
Step 950
950 (this color)
#102C73
oklch(32.3% 0.127 264.1)
#102C73 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) | #003675 | 0.027 |
| Deuteranopia (no green cones) | #002D72 | 0.010 |
| Tritanopia (no blue cones) | #003E4B | 0.097 |
| Achromatopsia (no color) | #323232 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102C73
#102C73
oklch(32.3% 0.127 264.1)
- #433000
#433000
oklch(32.2% 0.066 84.5)
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 #102C73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.036
- Marine Blue #01386A ΔE 0.038
- Midnight Blue #191970 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.060
- Twilight Blue #0A437A ΔE 0.065
- Royal #0C1793 ΔE 0.066
- Navy #000080 ΔE 0.080
- Dark Royal Blue #02066F ΔE 0.080
Use #102C73 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.