#1D224A
Closest named color: Oxford Blue (#1B263B). oklch(27.1% 0.074 275), rgb(29, 34, 74).
Aa
White text reads best on this color (15.21:1).
About this color
#1D224A is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.074 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.033 away. White text reads best on it, at 15.21:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.37:1 |
| White text | 15.21:1 |
Values
| HEX | #1D224A |
| RGB | rgb(29, 34, 74) |
| HSL | hsl(233, 44%, 20%) |
| OKLCH | oklch(27.1% 0.074 275) |
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 #1D224A | 15.21:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #1D224A | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #1D224A text on white | 15.21:1 | AAA | Lc 102.0 | Preferred for body text |
| #1D224A text on black | 1.37:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#CFD7FA
oklch(88.4% 0.049 275.2)
-
Step 300
300
#B0BDF9
oklch(81% 0.086 274.8)
-
Step 400
400
#8898F7
oklch(70.8% 0.14 275)
-
Step 500
500
#6D7BF3
oklch(63.1% 0.178 275.1)
-
Step 600
600
#5760E2
oklch(55.6% 0.195 275.1)
-
Step 700
700
#484FC4
oklch(49.2% 0.18 275)
-
Step 800
800
#3B419E
oklch(42.6% 0.149 275.3)
-
Step 900
900
#31387E
oklch(37.6% 0.117 275)
-
Step 950
950 (this color)
#1D224A
oklch(27.1% 0.074 275)
#1D224A 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) | #0F284B | 0.023 |
| Deuteranopia (no green cones) | #092449 | 0.024 |
| Tritanopia (no blue cones) | #062B32 | 0.065 |
| Achromatopsia (no color) | #262626 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D224A
#1D224A
oklch(27.1% 0.074 275)
- #2F2600
#2F2600
oklch(27.1% 0.056 95.5)
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 #1D224A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.049
- Dark #1B2431 ΔE 0.050
- Marine #042E60 ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.061
- Dark Indigo #1F0954 ΔE 0.061
- Gunmetal #293241 ΔE 0.063
- Jet #212529 ΔE 0.066
Use #1D224A 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.