#1D2D3E
Closest named color: Space Cadet (#2B2D42). oklch(29.1% 0.038 250.7), rgb(29, 45, 62).
Aa
White text reads best on this color (14.02:1).
About this color
#1D2D3E is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.038 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.023 away. White text reads best on it, at 14.02:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.49:1 |
| White text | 14.02:1 |
Values
| HEX | #1D2D3E |
| RGB | rgb(29, 45, 62) |
| HSL | hsl(211, 36%, 18%) |
| OKLCH | oklch(29.1% 0.038 250.7) |
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 #1D2D3E | 14.02:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #1D2D3E | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #1D2D3E text on white | 14.02:1 | AAA | Lc 100.6 | Preferred for body text |
| #1D2D3E text on black | 1.49:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300
#ACC3DD
oklch(80.8% 0.045 251.6)
-
Step 400
400
#7FA4CC
oklch(70.6% 0.072 250.8)
-
Step 500
500
#5E8DBF
oklch(63% 0.092 250.9)
-
Step 600
600
#4377AC
oklch(55.7% 0.1 250.5)
-
Step 700
700
#356493
oklch(49.2% 0.092 250.2)
-
Step 800
800
#2C5178
oklch(42.6% 0.078 251.2)
-
Step 900
900
#284460
oklch(37.8% 0.059 249.6)
-
Step 950
950 (this color)
#1D2D3E
oklch(29.1% 0.038 250.7)
#1D2D3E 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) | #262E3F | 0.014 |
| Deuteranopia (no green cones) | #222A3E | 0.012 |
| Tritanopia (no blue cones) | #0F3133 | 0.033 |
| Achromatopsia (no color) | #2C2C2C | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D2D3E
#1D2D3E
oklch(29.1% 0.038 250.7)
- #382816
#382816
oklch(29.1% 0.038 68.7)
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 #1D2D3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.023
- Oxford Blue #1B263B ΔE 0.024
- Gunmetal #293241 ΔE 0.026
- Dark #1B2431 ΔE 0.035
- Jet #212529 ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.047
- Midnight Green #073B4C ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.049
Use #1D2D3E 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.