#102D73
Closest named color: Marine (#042E60). oklch(32.5% 0.126 263.7), rgb(16, 45, 115).
Aa
White text reads best on this color (12.76:1).
About this color
#102D73 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.126 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.035 away. White text reads best on it, at 12.76:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.64:1 |
| White text | 12.76:1 |
Values
| HEX | #102D73 |
| RGB | rgb(16, 45, 115) |
| HSL | hsl(222, 76%, 26%) |
| OKLCH | oklch(32.5% 0.126 263.7) |
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 #102D73 | 12.76:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #102D73 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #102D73 text on white | 12.76:1 | AAA | Lc 98.3 | Preferred for body text |
| #102D73 text on black | 1.64:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFD
oklch(88.6% 0.052 263.7)
-
Step 300
300
#A1C0FE
oklch(80.8% 0.095 263.8)
-
Step 400
400
#6F9DFE
oklch(70.6% 0.151 263.8)
-
Step 500
500
#4A81FC
oklch(63.1% 0.193 263.7)
-
Step 600
600
#2F66EB
oklch(55.5% 0.21 263.8)
-
Step 700
700
#2254CD
oklch(49.1% 0.195 263.7)
-
Step 800
800
#1E46A5
oklch(42.7% 0.16 263.7)
-
Step 900
900 (this color)
#102D73
oklch(32.5% 0.126 263.7)
-
Step 950
950
#11244D
oklch(27.1% 0.08 263.3)
#102D73 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) | #003775 | 0.027 |
| Deuteranopia (no green cones) | #002E72 | 0.010 |
| Tritanopia (no blue cones) | #003F4B | 0.098 |
| Achromatopsia (no color) | #323232 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102D73
#102D73
oklch(32.5% 0.126 263.7)
- #443000
#443000
oklch(32.4% 0.067 83.3)
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 #102D73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.035
- Marine Blue #01386A ΔE 0.036
- Midnight Blue #191970 ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.059
- Twilight Blue #0A437A ΔE 0.063
- Royal #0C1793 ΔE 0.067
- Navy #000080 ΔE 0.082
- Dark Royal Blue #02066F ΔE 0.083
Use #102D73 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.