#1D2444
Closest named color: Oxford Blue (#1B263B). oklch(27.2% 0.06 272.5), rgb(29, 36, 68).
Aa
White text reads best on this color (15.12:1).
About this color
#1D2444 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.060 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.020 away. White text reads best on it, at 15.12:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.12:1 |
Values
| HEX | #1D2444 |
| RGB | rgb(29, 36, 68) |
| HSL | hsl(229, 40%, 19%) |
| OKLCH | oklch(27.2% 0.06 272.5) |
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 #1D2444 | 15.12:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #1D2444 | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #1D2444 text on white | 15.12:1 | AAA | Lc 101.9 | Preferred for body text |
| #1D2444 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F4
oklch(88.5% 0.04 272.9)
-
Step 300
300
#B1BEEF
oklch(80.8% 0.071 273.1)
-
Step 400
400
#889BE8
oklch(70.6% 0.115 272.6)
-
Step 500
500
#6C81E1
oklch(63.1% 0.146 272.3)
-
Step 600
600
#5668CE
oklch(55.6% 0.158 272.7)
-
Step 700
700
#4656B3
oklch(49.1% 0.148 272.5)
-
Step 800
800
#3A4791
oklch(42.8% 0.122 272.7)
-
Step 900
900
#313C73
oklch(37.6% 0.095 272.6)
-
Step 950
950 (this color)
#1D2444
oklch(27.2% 0.06 272.5)
#1D2444 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) | #172845 | 0.014 |
| Deuteranopia (no green cones) | #132443 | 0.014 |
| Tritanopia (no blue cones) | #0C2B30 | 0.054 |
| Achromatopsia (no color) | #262626 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D2444
#1D2444
oklch(27.2% 0.06 272.5)
- #302600
#302600
oklch(27.2% 0.056 93.9)
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 #1D2444, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.020
- Dark #1B2431 ΔE 0.037
- Space Cadet #2B2D42 ΔE 0.041
- Jet #212529 ΔE 0.052
- Gunmetal #293241 ΔE 0.054
- Marine #042E60 ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.062
Use #1D2444 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.