#1D3239
Closest named color: Gunmetal (#293241). oklch(30.3% 0.03 221.1), rgb(29, 50, 57).
Aa
White text reads best on this color (13.39:1).
About this color
#1D3239 is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.024 away. White text reads best on it, at 13.39:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.56:1 |
| White text | 13.39:1 |
Values
| HEX | #1D3239 |
| RGB | rgb(29, 50, 57) |
| HSL | hsl(195, 33%, 17%) |
| OKLCH | oklch(30.3% 0.03 221.1) |
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 #1D3239 | 13.39:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #1D3239 | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #1D3239 text on white | 13.39:1 | AAA | Lc 99.8 | Preferred for body text |
| #1D3239 text on black | 1.56:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3ECEF
oklch(93.7% 0.01 219.6)
-
Step 200
200
#CCDCE2
oklch(88.4% 0.019 222.2)
-
Step 300
300
#A9C6D1
oklch(80.9% 0.035 222.7)
-
Step 400
400
#79A9B9
oklch(70.6% 0.056 220.6)
-
Step 500
500
#5594A8
oklch(63.2% 0.071 220.5)
-
Step 600
600
#377E93
oklch(55.7% 0.077 220.2)
-
Step 700
700
#286A7E
oklch(49.1% 0.073 221.3)
-
Step 800
800
#235666
oklch(42.6% 0.06 221.6)
-
Step 900
900
#224753
oklch(37.6% 0.047 221.5)
-
Step 950
950 (this color)
#1D3239
oklch(30.3% 0.03 221.1)
#1D3239 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) | #2E3139 | 0.025 |
| Deuteranopia (no green cones) | #292E39 | 0.021 |
| Tritanopia (no blue cones) | #113434 | 0.019 |
| Achromatopsia (no color) | #2F2F2F | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D3239
#1D3239
oklch(30.3% 0.03 221.1)
- #3C2A23
#3C2A23
oklch(30.4% 0.03 42.2)
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 #1D3239, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.034
- Midnight Green #073B4C ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.041
- Oxford Blue #1B263B ΔE 0.044
- Jet #212529 ΔE 0.046
- Onyx #343A40 ΔE 0.047
- Dark #1B2431 ΔE 0.048
Use #1D3239 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.