#28333F
Closest named color: Gunmetal (#293241). oklch(31.6% 0.026 250.9), rgb(40, 51, 63).
Aa
White text reads best on this color (12.83:1).
About this color
#28333F is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.006 away. White text reads best on it, at 12.83:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.63:1 |
| White text | 12.83:1 |
Values
| HEX | #28333F |
| RGB | rgb(40, 51, 63) |
| HSL | hsl(211, 22%, 20%) |
| OKLCH | oklch(31.6% 0.026 250.9) |
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 #28333F | 12.83:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #28333F | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #28333F text on white | 12.83:1 | AAA | Lc 99.0 | Preferred for body text |
| #28333F text on black | 1.63:1 | 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
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D5
oklch(81% 0.032 249.7)
-
Step 400
400
#8AA3BF
oklch(70.6% 0.05 251.4)
-
Step 500
500
#6D8DAF
oklch(63.2% 0.063 250.4)
-
Step 600
600
#54769B
oklch(55.5% 0.07 251.2)
-
Step 700
700
#456384
oklch(49% 0.064 251.5)
-
Step 800
800
#39516B
oklch(42.7% 0.053 251.1)
-
Step 900
900
#314357
oklch(37.6% 0.041 251.6)
-
Step 950
950 (this color)
#28333F
oklch(31.6% 0.026 250.9)
#28333F 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) | #2F3340 | 0.011 |
| Deuteranopia (no green cones) | #2C313F | 0.009 |
| Tritanopia (no blue cones) | #213637 | 0.023 |
| Achromatopsia (no color) | #323232 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28333F
#28333F
oklch(31.6% 0.026 250.9)
- #3B3023
#3B3023
oklch(31.7% 0.027 71.3)
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 #28333F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.006
- Space Cadet #2B2D42 ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.031
- Onyx #343A40 ΔE 0.032
- Midnight Green #073B4C ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.050
- Jet #212529 ΔE 0.057
Use #28333F 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.