#15244A
Closest named color: Oxford Blue (#1B263B). oklch(27% 0.073 265.6), rgb(21, 36, 74).
Aa
White text reads best on this color (15.18:1).
About this color
#15244A is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.073 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.031 away. White text reads best on it, at 15.18:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.18:1 |
Values
| HEX | #15244A |
| RGB | rgb(21, 36, 74) |
| HSL | hsl(223, 56%, 19%) |
| OKLCH | oklch(27% 0.073 265.6) |
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 #15244A | 15.18:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #15244A | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #15244A text on white | 15.18:1 | AAA | Lc 101.9 | Preferred for body text |
| #15244A text on black | 1.38:1 | 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
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CAD9FA
oklch(88.5% 0.048 266)
-
Step 300
300
#A6C0FA
oklch(80.9% 0.087 265.8)
-
Step 400
400
#779DF7
oklch(70.7% 0.139 265.7)
-
Step 500
500
#5582F4
oklch(63.2% 0.178 265.4)
-
Step 600
600
#3C68E2
oklch(55.6% 0.192 265.5)
-
Step 700
700
#2F55C5
oklch(49.1% 0.18 265.7)
-
Step 800
800
#27479F
oklch(42.8% 0.148 265.4)
-
Step 900
900
#233C7E
oklch(37.6% 0.116 265.5)
-
Step 950
950 (this color)
#15244A
oklch(27% 0.073 265.6)
#15244A 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) | #11284B | 0.013 |
| Deuteranopia (no green cones) | #082349 | 0.015 |
| Tritanopia (no blue cones) | #002D33 | 0.062 |
| Achromatopsia (no color) | #262626 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15244A
#15244A
oklch(27% 0.073 265.6)
- #332400
#332400
oklch(27.1% 0.056 85)
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 #15244A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.031
- Marine #042E60 ΔE 0.047
- Dark #1B2431 ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.058
- Gunmetal #293241 ΔE 0.063
- Jet #212529 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.066
Use #15244A 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.