#1D2447
Closest named color: Oxford Blue (#1B263B). oklch(27.4% 0.065 272.9), rgb(29, 36, 71).
Aa
White text reads best on this color (15.04:1).
About this color
#1D2447 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.065 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.025 away. White text reads best on it, at 15.04:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.39:1 |
| White text | 15.04:1 |
Values
| HEX | #1D2447 |
| RGB | rgb(29, 36, 71) |
| HSL | hsl(230, 42%, 20%) |
| OKLCH | oklch(27.4% 0.065 272.9) |
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 #1D2447 | 15.04:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #1D2447 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #1D2447 text on white | 15.04:1 | AAA | Lc 101.8 | Preferred for body text |
| #1D2447 text on black | 1.39:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#B0BEF3
oklch(80.9% 0.077 273.1)
-
Step 400
400
#879AEE
oklch(70.6% 0.125 273.1)
-
Step 500
500
#6B7FE8
oklch(63.1% 0.158 272.9)
-
Step 600
600
#5466D6
oklch(55.6% 0.172 272.7)
-
Step 700
700
#4554BA
oklch(49.2% 0.16 272.8)
-
Step 800
800
#394596
oklch(42.7% 0.132 273.1)
-
Step 900
900
#303B78
oklch(37.7% 0.104 272.8)
-
Step 950
950 (this color)
#1D2447
oklch(27.4% 0.065 272.9)
#1D2447 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) | #152848 | 0.015 |
| Deuteranopia (no green cones) | #102546 | 0.017 |
| Tritanopia (no blue cones) | #092C32 | 0.058 |
| Achromatopsia (no color) | #262626 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D2447
#1D2447
oklch(27.4% 0.065 272.9)
- #312600
#312600
oklch(27.3% 0.056 92.2)
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 #1D2447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.042
- Dark #1B2431 ΔE 0.042
- Marine #042E60 ΔE 0.053
- Gunmetal #293241 ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.057
- Jet #212529 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.066
Use #1D2447 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.