#39313B
Closest named color: Gunmetal (#293241). oklch(32.6% 0.021 319.5), rgb(57, 49, 59).
Aa
White text reads best on this color (12.52:1).
About this color
#39313B is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.028 away. White text reads best on it, at 12.52:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.67:1 |
| White text | 12.52:1 |
Values
| HEX | #39313B |
| RGB | rgb(57, 49, 59) |
| HSL | hsl(288, 9%, 21%) |
| OKLCH | oklch(32.6% 0.021 319.5) |
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 #39313B | 12.52:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #39313B | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #39313B text on white | 12.52:1 | AAA | Lc 98.5 | Preferred for body text |
| #39313B text on black | 1.67:1 | 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 900.
-
Step 50
50
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#EBE9EC
oklch(93.6% 0.005 314.8)
-
Step 200
200
#DCD7DD
oklch(88.5% 0.01 320.5)
-
Step 300
300
#C5BEC7
oklch(81% 0.015 318.7)
-
Step 400
400
#A89CAA
oklch(70.7% 0.024 321.4)
-
Step 500
500
#928496
oklch(63.2% 0.031 318.7)
-
Step 600
600
#7C6D80
oklch(55.5% 0.034 319.1)
-
Step 700
700
#695B6C
oklch(49.1% 0.032 320.3)
-
Step 800
800
#564B58
oklch(42.9% 0.025 321.1)
-
Step 900
900 (this color)
#39313B
oklch(32.6% 0.021 319.5)
-
Step 950
950
#29242A
oklch(26.8% 0.013 320.6)
#39313B 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) | #30333B | 0.016 |
| Deuteranopia (no green cones) | #32343B | 0.015 |
| Tritanopia (no blue cones) | #393234 | 0.014 |
| Achromatopsia (no color) | #343434 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39313B
#39313B
oklch(32.6% 0.021 319.5)
- #2F372D
#2F372D
oklch(32.6% 0.02 139.4)
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 #39313B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.028
- Onyx #343A40 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.061
- Midnight Green #073B4C ΔE 0.064
- Jet #212529 ΔE 0.067
Use #39313B 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.