#1D2945
Closest named color: Oxford Blue (#1B263B). oklch(28.5% 0.054 265.5), rgb(29, 41, 69).
Aa
White text reads best on this color (14.42:1).
About this color
#1D2945 is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.054 and its hue 266°. 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 14.42:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.45:1 |
| White text | 14.42:1 |
Values
| HEX | #1D2945 |
| RGB | rgb(29, 41, 69) |
| HSL | hsl(222, 41%, 19%) |
| OKLCH | oklch(28.5% 0.054 265.5) |
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 #1D2945 | 14.42:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #1D2945 | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #1D2945 text on white | 14.42:1 | AAA | Lc 101.1 | Preferred for body text |
| #1D2945 text on black | 1.45:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CED9F2
oklch(88.5% 0.036 266.7)
-
Step 300
300
#ADC1EB
oklch(81% 0.064 265)
-
Step 400
400
#829FE1
oklch(70.7% 0.103 265.7)
-
Step 500
500
#6386D9
oklch(63.1% 0.132 265.5)
-
Step 600
600
#4A6EC6
oklch(55.6% 0.143 265.3)
-
Step 700
700
#3C5BAB
oklch(49% 0.133 265.8)
-
Step 800
800
#314B8B
oklch(42.7% 0.111 265.4)
-
Step 900
900
#2B3F6F
oklch(37.6% 0.086 265.4)
-
Step 950
950 (this color)
#1D2945
oklch(28.5% 0.054 265.5)
#1D2945 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) | #1E2C46 | 0.010 |
| Deuteranopia (no green cones) | #1A2844 | 0.006 |
| Tritanopia (no blue cones) | #0A2F33 | 0.049 |
| Achromatopsia (no color) | #2A2A2A | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D2945
#1D2945
oklch(28.5% 0.054 265.5)
- #362804
#362804
oklch(28.6% 0.054 86.4)
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 #1D2945, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.020
- Space Cadet #2B2D42 ΔE 0.028
- Dark #1B2431 ΔE 0.038
- Gunmetal #293241 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.046
- Jet #212529 ΔE 0.051
- Marine #042E60 ΔE 0.051
- Midnight Green #073B4C ΔE 0.059
Use #1D2945 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.