#1D2D45
Closest named color: Space Cadet (#2B2D42). oklch(29.5% 0.049 258.3), rgb(29, 45, 69).
Aa
White text reads best on this color (13.87:1).
About this color
#1D2D45 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.049 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.022 away. White text reads best on it, at 13.87:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.51:1 |
| White text | 13.87:1 |
Values
| HEX | #1D2D45 |
| RGB | rgb(29, 45, 69) |
| HSL | hsl(216, 41%, 19%) |
| OKLCH | oklch(29.5% 0.049 258.3) |
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 #1D2D45 | 13.87:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #1D2D45 | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #1D2D45 text on white | 13.87:1 | AAA | Lc 100.4 | Preferred for body text |
| #1D2D45 text on black | 1.51:1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CCDAEF
oklch(88.4% 0.033 258.4)
-
Step 300
300
#AAC2E7
oklch(80.9% 0.059 259)
-
Step 400
400
#7DA2DA
oklch(70.7% 0.092 258.5)
-
Step 500
500
#5B8AD1
oklch(63.1% 0.119 258.4)
-
Step 600
600
#4173BE
oklch(55.7% 0.129 258.3)
-
Step 700
700
#3260A4
oklch(49.2% 0.121 258.2)
-
Step 800
800
#2A4F85
oklch(42.8% 0.1 257.9)
-
Step 900
900
#27426A
oklch(37.8% 0.076 258.1)
-
Step 950
950 (this color)
#1D2D45
oklch(29.5% 0.049 258.3)
#1D2D45 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) | #242F46 | 0.013 |
| Deuteranopia (no green cones) | #1F2B44 | 0.007 |
| Tritanopia (no blue cones) | #093236 | 0.042 |
| Achromatopsia (no color) | #2C2C2C | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D2D45
#1D2D45
oklch(29.5% 0.049 258.3)
- #3A290D
#3A290D
oklch(29.5% 0.049 77.2)
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 #1D2D45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.022
- Oxford Blue #1B263B ΔE 0.027
- Gunmetal #293241 ΔE 0.028
- Prussian Blue #1D3557 ΔE 0.037
- Dark #1B2431 ΔE 0.043
- Midnight Green #073B4C ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.046
- Marine #042E60 ΔE 0.052
Use #1D2D45 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.