#102F48
Closest named color: Oxford Blue (#1B263B). oklch(29.6% 0.058 246), rgb(16, 47, 72).
Aa
White text reads best on this color (13.79:1).
About this color
#102F48 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.058 and its hue 246°. 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 13.79:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.52:1 |
| White text | 13.79:1 |
Values
| HEX | #102F48 |
| RGB | rgb(16, 47, 72) |
| HSL | hsl(207, 64%, 17%) |
| OKLCH | oklch(29.6% 0.058 246) |
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 #102F48 | 13.79:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #102F48 | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #102F48 text on white | 13.79:1 | AAA | Lc 100.2 | Preferred for body text |
| #102F48 text on black | 1.52:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#DFECF7
oklch(93.7% 0.02 243.4)
-
Step 200
200
#C5DCF2
oklch(88.4% 0.039 247.1)
-
Step 300
300
#9CC6EB
oklch(80.9% 0.069 245.4)
-
Step 400
400
#63A7E1
oklch(70.7% 0.11 245.9)
-
Step 500
500
#2E8FD9
oklch(63% 0.142 246.2)
-
Step 600
600
#0078C1
oklch(55.5% 0.143 246.2)
-
Step 700
700
#0065A3
oklch(49.1% 0.126 245.9)
-
Step 800
800
#005387
oklch(42.8% 0.11 245.8)
-
Step 900
900
#07456F
oklch(37.8% 0.092 245.6)
-
Step 950
950 (this color)
#102F48
oklch(29.6% 0.058 246)
#102F48 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) | #243049 | 0.025 |
| Deuteranopia (no green cones) | #1C2A48 | 0.020 |
| Tritanopia (no blue cones) | #003538 | 0.043 |
| Achromatopsia (no color) | #2D2D2D | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102F48
#102F48
oklch(29.6% 0.058 246)
- #402607
#402607
oklch(29.5% 0.058 66.2)
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 #102F48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.034
- Space Cadet #2B2D42 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.036
- Gunmetal #293241 ΔE 0.036
- Midnight Green #073B4C ΔE 0.039
- Marine #042E60 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.045
- Dark #1B2431 ΔE 0.049
Use #102F48 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.