#15224D
Closest named color: Oxford Blue (#1B263B). oklch(26.8% 0.081 267.9), rgb(21, 34, 77).
Aa
White text reads best on this color (15.35:1).
About this color
#15224D is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.081 and its hue 268°. 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 15.35:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.35:1 |
Values
| HEX | #15224D |
| RGB | rgb(21, 34, 77) |
| HSL | hsl(226, 57%, 19%) |
| OKLCH | oklch(26.8% 0.081 267.9) |
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 #15224D | 15.35:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #15224D | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #15224D text on white | 15.35:1 | AAA | Lc 102.1 | Preferred for body text |
| #15224D text on black | 1.36:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CAD9FE
oklch(88.6% 0.054 267.9)
-
Step 300
300
#A6BFFF
oklch(80.9% 0.095 267.8)
-
Step 400
400
#789BFF
oklch(70.8% 0.152 267.9)
-
Step 500
500
#577DFF
oklch(63.1% 0.197 268)
-
Step 600
600
#3F62EE
oklch(55.6% 0.214 267.9)
-
Step 700
700
#3250CF
oklch(49.1% 0.199 267.9)
-
Step 800
800
#2942A7
oklch(42.6% 0.165 267.9)
-
Step 900
900
#253A85
oklch(37.8% 0.128 267.9)
-
Step 950
950 (this color)
#15224D
oklch(26.8% 0.081 267.9)
#15224D 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) | #09284F | 0.020 |
| Deuteranopia (no green cones) | #00224C | 0.021 |
| Tritanopia (no blue cones) | #002C33 | 0.068 |
| Achromatopsia (no color) | #252525 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15224D
#15224D
oklch(26.8% 0.081 267.9)
- #312400
#312400
oklch(26.8% 0.055 88.3)
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 #15224D, 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 0.047
- Dark #1B2431 ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.058
- Dark Indigo #1F0954 ΔE 0.059
- Navy Blue #001146 ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.063
- Midnight Blue #191970 ΔE 0.066
Use #15224D 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.