#1D2056
Closest named color: Marine (#042E60). oklch(27.7% 0.096 275.8), rgb(29, 32, 86).
Aa
White text reads best on this color (15.07:1).
About this color
#1D2056 is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.096 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.045 away. White text reads best on it, at 15.07:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.39:1 |
| White text | 15.07:1 |
Values
| HEX | #1D2056 |
| RGB | rgb(29, 32, 86) |
| HSL | hsl(237, 50%, 23%) |
| OKLCH | oklch(27.7% 0.096 275.8) |
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 #1D2056 | 15.07:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #1D2056 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #1D2056 text on white | 15.07:1 | AAA | Lc 101.7 | Preferred for body text |
| #1D2056 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E9FF
oklch(93.7% 0.03 275.6)
-
Step 200
200
#CED7FF
oklch(88.5% 0.056 275.2)
-
Step 300
300
#AFBCFF
oklch(80.9% 0.096 275.6)
-
Step 400
400
#8796FF
oklch(70.7% 0.154 275.6)
-
Step 500
500
#6C77FF
oklch(63.2% 0.199 275.6)
-
Step 600
600
#5652FF
oklch(55.6% 0.247 275.8)
-
Step 700
700
#473EE1
oklch(49% 0.235 275.7)
-
Step 800
800
#3A35B6
oklch(42.7% 0.195 275.9)
-
Step 900
900
#303190
oklch(37.7% 0.153 275.8)
-
Step 950
950 (this color)
#1D2056
oklch(27.7% 0.096 275.8)
#1D2056 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) | #002958 | 0.035 |
| Deuteranopia (no green cones) | #002455 | 0.032 |
| Tritanopia (no blue cones) | #002D37 | 0.082 |
| Achromatopsia (no color) | #262626 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D2056
#1D2056
oklch(27.7% 0.096 275.8)
- #312800
#312800
oklch(27.9% 0.057 96)
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 #1D2056, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.045
- Midnight Blue #191970 ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.050
- Oxford Blue #1B263B ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.065
- Darkblue #030764 ΔE 0.071
- Navy Blue #001146 ΔE 0.071
Use #1D2056 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.