#323F41
Closest named color: Onyx (#343A40). oklch(35.7% 0.017 207.8), rgb(50, 63, 65).
Aa
White text reads best on this color (10.92:1).
About this color
#323F41 is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.016 away. White text reads best on it, at 10.92:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #323F41 |
| RGB | rgb(50, 63, 65) |
| HSL | hsl(188, 13%, 23%) |
| OKLCH | oklch(35.7% 0.017 207.8) |
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 #323F41 | 10.92:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #323F41 | 1.92:1 | Fails | Lc 8.6 | Not readable |
| #323F41 text on white | 10.92:1 | AAA | Lc 95.3 | Preferred for body text |
| #323F41 text on black | 1.92:1 | Fails | Lc -7.4 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D4DADB
oklch(88.4% 0.007 208.8)
-
Step 300
300
#B8C3C5
oklch(80.9% 0.012 209.8)
-
Step 400
400
#92A4A7
oklch(70.6% 0.021 208.7)
-
Step 500
500
#778E92
oklch(63% 0.027 209.3)
-
Step 600
600
#60787C
oklch(55.5% 0.029 208.8)
-
Step 700
700
#4F6569
oklch(49% 0.027 209.9)
-
Step 800
800
#415355
oklch(42.8% 0.023 204.7)
-
Step 900
900 (this color)
#323F41
oklch(35.7% 0.017 207.8)
-
Step 950
950
#202829
oklch(27% 0.011 205.8)
#323F41 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) | #3D3E41 | 0.017 |
| Deuteranopia (no green cones) | #3A3C41 | 0.015 |
| Tritanopia (no blue cones) | #2E4040 | 0.007 |
| Achromatopsia (no color) | #3D3D3D | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #323F41
#323F41
oklch(35.7% 0.017 207.8)
- #453937
#453937
oklch(35.7% 0.017 29.1)
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 #323F41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.016
- Charcoal Grey #3C4142 ΔE 0.018
- Charcoal #264653 ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.044
- Gunmetal #293241 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.051
- Midnight Green #073B4C ΔE 0.051
Use #323F41 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.