#102940
Closest named color: Oxford Blue (#1B263B). oklch(27.4% 0.053 248.6), rgb(16, 41, 64).
Aa
White text reads best on this color (14.85:1).
About this color
#102940 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.053 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.016 away. White text reads best on it, at 14.85:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.41:1 |
| White text | 14.85:1 |
Values
| HEX | #102940 |
| RGB | rgb(16, 41, 64) |
| HSL | hsl(209, 60%, 16%) |
| OKLCH | oklch(27.4% 0.053 248.6) |
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 #102940 | 14.85:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #102940 | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #102940 text on white | 14.85:1 | AAA | Lc 101.6 | Preferred for body text |
| #102940 text on black | 1.41:1 | 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
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DCF0
oklch(88.6% 0.035 248.2)
-
Step 300
300
#A2C5E8
oklch(81% 0.062 248.6)
-
Step 400
400
#6DA6DC
oklch(70.7% 0.1 248.1)
-
Step 500
500
#428ED3
oklch(63% 0.129 248.6)
-
Step 600
600
#1C77C0
oklch(55.6% 0.139 248.5)
-
Step 700
700
#0B64A6
oklch(49.2% 0.129 248.5)
-
Step 800
800
#105286
oklch(42.8% 0.106 248.2)
-
Step 900
900
#17446C
oklch(37.7% 0.084 248.9)
-
Step 950
950 (this color)
#102940
oklch(27.4% 0.053 248.6)
#102940 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) | #1F2A41 | 0.020 |
| Deuteranopia (no green cones) | #182540 | 0.015 |
| Tritanopia (no blue cones) | #002E31 | 0.040 |
| Achromatopsia (no color) | #272727 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102940
#102940
oklch(27.4% 0.053 248.6)
- #382206
#382206
oklch(27.4% 0.053 68.7)
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 #102940, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.016
- Dark #1B2431 ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.042
- Jet #212529 ΔE 0.045
- Gunmetal #293241 ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.057
- Marine #042E60 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.059
Use #102940 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.