#1D2D44
Closest named color: Space Cadet (#2B2D42). oklch(29.5% 0.047 257.4), rgb(29, 45, 68).
Aa
White text reads best on this color (13.89:1).
About this color
#1D2D44 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.047 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.021 away. White text reads best on it, at 13.89:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.51:1 |
| White text | 13.89:1 |
Values
| HEX | #1D2D44 |
| RGB | rgb(29, 45, 68) |
| HSL | hsl(215, 40%, 19%) |
| OKLCH | oklch(29.5% 0.047 257.4) |
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 #1D2D44 | 13.89:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #1D2D44 | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #1D2D44 text on white | 13.89:1 | AAA | Lc 100.4 | Preferred for body text |
| #1D2D44 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
#CDDAEE
oklch(88.5% 0.031 258.9)
-
Step 300
300
#AAC2E5
oklch(80.8% 0.056 257.7)
-
Step 400
400
#7DA2D8
oklch(70.6% 0.09 257.7)
-
Step 500
500
#5B8BCE
oklch(63.2% 0.114 256.9)
-
Step 600
600
#4173BB
oklch(55.5% 0.125 257.6)
-
Step 700
700
#3360A1
oklch(49% 0.116 257.7)
-
Step 800
800
#2B4F83
oklch(42.8% 0.096 257.7)
-
Step 900
900
#274269
oklch(37.7% 0.075 257.6)
-
Step 950
950 (this color)
#1D2D44
oklch(29.5% 0.047 257.4)
#1D2D44 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) | #242E45 | 0.011 |
| Deuteranopia (no green cones) | #1F2B44 | 0.007 |
| Tritanopia (no blue cones) | #0A3235 | 0.042 |
| Achromatopsia (no color) | #2C2C2C | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D2D44
#1D2D44
oklch(29.5% 0.047 257.4)
- #3A290E
#3A290E
oklch(29.5% 0.048 76.5)
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 #1D2D44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.021
- Oxford Blue #1B263B ΔE 0.026
- Gunmetal #293241 ΔE 0.027
- Prussian Blue #1D3557 ΔE 0.039
- Dark #1B2431 ΔE 0.042
- Midnight Green #073B4C ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.047
- Jet #212529 ΔE 0.050
Use #1D2D44 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.