#102E7D
Closest named color: Marine Blue (#01386A). oklch(33.7% 0.139 264.2), rgb(16, 46, 125).
Aa
White text reads best on this color (12.28:1).
About this color
#102E7D is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.139 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.045 away. White text reads best on it, at 12.28:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.70:1 |
| White text | 12.28:1 |
Values
| HEX | #102E7D |
| RGB | rgb(16, 46, 125) |
| HSL | hsl(223, 77%, 28%) |
| OKLCH | oklch(33.7% 0.139 264.2) |
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 #102E7D | 12.28:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #102E7D | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #102E7D text on white | 12.28:1 | AAA | Lc 97.4 | Preferred for body text |
| #102E7D text on black | 1.70:1 | 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
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C7DAFF
oklch(88.6% 0.055 263.7)
-
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
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600
#2962F7
oklch(55.5% 0.231 264.1)
-
Step 700
700
#1E50D8
oklch(49.2% 0.215 264.2)
-
Step 800
800
#1A42AE
oklch(42.6% 0.178 264.4)
-
Step 900
900 (this color)
#102E7D
oklch(33.7% 0.139 264.2)
-
Step 950
950
#102351
oklch(27.1% 0.088 264.4)
#102E7D 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) | #003A80 | 0.031 |
| Deuteranopia (no green cones) | #00307C | 0.010 |
| Tritanopia (no blue cones) | #004250 | 0.107 |
| Achromatopsia (no color) | #353535 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102E7D
#102E7D
oklch(33.7% 0.139 264.2)
- #483300
#483300
oklch(33.6% 0.069 83.2)
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 #102E7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.045
- Marine #042E60 ΔE 0.052
- Midnight Blue #191970 ΔE 0.053
- Royal #0C1793 ΔE 0.056
- Twilight Blue #0A437A ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.072
- Dark Blue #00008B ΔE 0.078
- Cobalt #1E488F ΔE 0.079
Use #102E7D 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.