#102D7A
Closest named color: Marine Blue (#01386A). oklch(33.2% 0.136 264.3), rgb(16, 45, 122).
Aa
White text reads best on this color (12.51:1).
About this color
#102D7A is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.136 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.043 away. White text reads best on it, at 12.51:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.67:1 |
| White text | 12.51:1 |
Values
| HEX | #102D7A |
| RGB | rgb(16, 45, 122) |
| HSL | hsl(224, 77%, 27%) |
| OKLCH | oklch(33.2% 0.136 264.3) |
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 #102D7A | 12.51:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #102D7A | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #102D7A text on white | 12.51:1 | AAA | Lc 97.8 | Preferred for body text |
| #102D7A text on black | 1.67:1 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C7D9FF
oklch(88.4% 0.056 265.2)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#709DFF
oklch(70.7% 0.152 264.2)
-
Step 500
500
#4B80FF
oklch(63.1% 0.197 264.4)
-
Step 600
600
#2C63F5
oklch(55.6% 0.226 264.3)
-
Step 700
700
#2050D5
oklch(49% 0.211 264.4)
-
Step 800
800
#1B43AC
oklch(42.7% 0.174 264.2)
-
Step 900
900 (this color)
#102D7A
oklch(33.2% 0.136 264.3)
-
Step 950
950
#102350
oklch(27% 0.086 264.2)
#102D7A 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) | #00397D | 0.032 |
| Deuteranopia (no green cones) | #002F79 | 0.010 |
| Tritanopia (no blue cones) | #00414F | 0.104 |
| Achromatopsia (no color) | #343434 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102D7A
#102D7A
oklch(33.2% 0.136 264.3)
- #463200
#463200
oklch(33.1% 0.068 84.1)
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 #102D7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.043
- Marine #042E60 ΔE 0.047
- Midnight Blue #191970 ΔE 0.049
- Royal #0C1793 ΔE 0.058
- Twilight Blue #0A437A ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.069
- Dark Blue #00008B ΔE 0.077
- Navy #000080 ΔE 0.080
Use #102D7A 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.