#28343B
Closest named color: Gunmetal (#293241). oklch(31.7% 0.02 233.9), rgb(40, 52, 59).
Aa
White text reads best on this color (12.76:1).
About this color
#28343B is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.015 away. White text reads best on it, at 12.76:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.64:1 |
| White text | 12.76:1 |
Values
| HEX | #28343B |
| RGB | rgb(40, 52, 59) |
| HSL | hsl(202, 19%, 19%) |
| OKLCH | oklch(31.7% 0.02 233.9) |
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 #28343B | 12.76:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #28343B | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #28343B text on white | 12.76:1 | AAA | Lc 98.9 | Preferred for body text |
| #28343B text on black | 1.64:1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B2C4CE
oklch(81% 0.024 231.9)
-
Step 400
400
#8AA5B5
oklch(70.7% 0.038 234.1)
-
Step 500
500
#6C8FA3
oklch(63.1% 0.049 233.6)
-
Step 600
600
#53798E
oklch(55.6% 0.054 233.2)
-
Step 700
700
#446679
oklch(49.2% 0.05 233.6)
-
Step 800
800
#385362
oklch(42.7% 0.041 233.3)
-
Step 900
900
#304550
oklch(37.7% 0.032 231.5)
-
Step 950
950 (this color)
#28343B
oklch(31.7% 0.02 233.9)
#28343B 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) | #31343B | 0.014 |
| Deuteranopia (no green cones) | #2E313B | 0.013 |
| Tritanopia (no blue cones) | #223636 | 0.016 |
| Achromatopsia (no color) | #323232 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28343B
#28343B
oklch(31.7% 0.02 233.9)
- #3B2F28
#3B2F28
oklch(31.6% 0.021 51.9)
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 #28343B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.015
- Onyx #343A40 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.034
- Midnight Green #073B4C ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.056
Use #28343B 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.