#1F2E37
Closest named color: Gunmetal (#293241). oklch(29.2% 0.026 235.2), rgb(31, 46, 55).
Aa
White text reads best on this color (13.96:1).
About this color
#1F2E37 is a dark close to neutral grey. In OKLCH its lightness is 29%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.027 away. White text reads best on it, at 13.96:1.
| Hue family | Neutrals |
| Lightness | dark (29%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.50:1 |
| White text | 13.96:1 |
Values
| HEX | #1F2E37 |
| RGB | rgb(31, 46, 55) |
| HSL | hsl(203, 28%, 17%) |
| OKLCH | oklch(29.2% 0.026 235.2) |
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 #1F2E37 | 13.96:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #1F2E37 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #1F2E37 text on white | 13.96:1 | AAA | Lc 100.6 | Preferred for body text |
| #1F2E37 text on black | 1.50:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AEC4D2
oklch(80.8% 0.031 235.7)
-
Step 400
400
#83A6BB
oklch(70.6% 0.049 234.7)
-
Step 500
500
#6390AA
oklch(63.1% 0.063 234.5)
-
Step 600
600
#497A96
oklch(55.6% 0.069 234.9)
-
Step 700
700
#3A6780
oklch(49.2% 0.064 234.4)
-
Step 800
800
#315468
oklch(42.8% 0.052 234.9)
-
Step 900
900
#2B4554
oklch(37.6% 0.041 234.7)
-
Step 950
950 (this color)
#1F2E37
oklch(29.2% 0.026 235.2)
#1F2E37 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) | #2A2E37 | 0.017 |
| Deuteranopia (no green cones) | #272B37 | 0.015 |
| Tritanopia (no blue cones) | #163031 | 0.019 |
| Achromatopsia (no color) | #2C2C2C | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F2E37
#1F2E37
oklch(29.2% 0.026 235.2)
- #36281F
#36281F
oklch(29% 0.026 54.2)
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 #1F2E37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.027
- Space Cadet #2B2D42 ΔE 0.030
- Oxford Blue #1B263B ΔE 0.032
- Jet #212529 ΔE 0.034
- Dark #1B2431 ΔE 0.036
- Midnight Green #073B4C ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.051
- Onyx #343A40 ΔE 0.055
Use #1F2E37 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.