#10224C
Closest named color: Oxford Blue (#1B263B). oklch(26.4% 0.081 264.1), rgb(16, 34, 76).
Aa
White text reads best on this color (15.49:1).
About this color
#10224C is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.081 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.039 away. White text reads best on it, at 15.49:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.35:1 |
| White text | 15.49:1 |
Values
| HEX | #10224C |
| RGB | rgb(16, 34, 76) |
| HSL | hsl(222, 65%, 18%) |
| OKLCH | oklch(26.4% 0.081 264.1) |
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 #10224C | 15.49:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #10224C | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #10224C text on white | 15.49:1 | AAA | Lc 102.2 | Preferred for body text |
| #10224C text on black | 1.35:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFE
oklch(88.6% 0.054 263.2)
-
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
#4A80FF
oklch(63.1% 0.198 264.2)
-
Step 600
600
#2F65EE
oklch(55.5% 0.215 264.2)
-
Step 700
700
#2353CF
oklch(49.1% 0.199 264.1)
-
Step 800
800
#1E45A7
oklch(42.7% 0.164 264.1)
-
Step 900
900
#1D3B85
oklch(37.7% 0.13 264.4)
-
Step 950
950 (this color)
#10224C
oklch(26.4% 0.081 264.1)
#10224C 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) | #09274E | 0.016 |
| Deuteranopia (no green cones) | #00224B | 0.015 |
| Tritanopia (no blue cones) | #002C33 | 0.065 |
| Achromatopsia (no color) | #242424 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10224C
#10224C
oklch(26.4% 0.081 264.1)
- #312200
#312200
oklch(26.3% 0.054 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 #10224C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.039
- Marine #042E60 ΔE 0.048
- Dark #1B2431 ΔE 0.054
- Navy Blue #001146 ΔE 0.058
- Dark Indigo #1F0954 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.066
Use #10224C 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.