#102E4A
Closest named color: Oxford Blue (#1B263B). oklch(29.4% 0.062 249.4), rgb(16, 46, 74).
Aa
White text reads best on this color (13.89:1).
About this color
#102E4A is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.062 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.034 away. White text reads best on it, at 13.89:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.51:1 |
| White text | 13.89:1 |
Values
| HEX | #102E4A |
| RGB | rgb(16, 46, 74) |
| HSL | hsl(209, 64%, 18%) |
| OKLCH | oklch(29.4% 0.062 249.4) |
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 #102E4A | 13.89:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #102E4A | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #102E4A text on white | 13.89:1 | AAA | Lc 100.3 | Preferred for body text |
| #102E4A text on black | 1.51:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C5DCF4
oklch(88.5% 0.041 249.4)
-
Step 300
300
#9CC5EF
oklch(80.9% 0.074 249.4)
-
Step 400
400
#63A6E7
oklch(70.8% 0.118 249.1)
-
Step 500
500
#308EE0
oklch(63.2% 0.151 249.2)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518D
oklch(42.7% 0.12 249.5)
-
Step 900
900
#094373
oklch(37.6% 0.099 249.8)
-
Step 950
950 (this color)
#102E4A
oklch(29.4% 0.062 249.4)
#102E4A 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) | #212F4B | 0.021 |
| Deuteranopia (no green cones) | #192A49 | 0.015 |
| Tritanopia (no blue cones) | #003538 | 0.048 |
| Achromatopsia (no color) | #2C2C2C | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102E4A
#102E4A
oklch(29.4% 0.062 249.4)
- #402601
#402601
oklch(29.5% 0.063 70.2)
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 #102E4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.035
- Space Cadet #2B2D42 ΔE 0.037
- Gunmetal #293241 ΔE 0.040
- Marine #042E60 ΔE 0.040
- Midnight Green #073B4C ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.048
- Dark #1B2431 ΔE 0.050
Use #102E4A 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.