#3E313F
Closest named color: Onyx (#343A40). oklch(33.3% 0.03 323.9), rgb(62, 49, 63).
Aa
White text reads best on this color (12.23:1).
About this color
#3E313F is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.032 away. White text reads best on it, at 12.23:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.71:1 |
| White text | 12.23:1 |
Values
| HEX | #3E313F |
| RGB | rgb(62, 49, 63) |
| HSL | hsl(296, 13%, 22%) |
| OKLCH | oklch(33.3% 0.03 323.9) |
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 #3E313F | 12.23:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #3E313F | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #3E313F text on white | 12.23:1 | AAA | Lc 97.9 | Preferred for body text |
| #3E313F text on black | 1.71:1 | 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
#ECE8EC
oklch(93.5% 0.007 325.6)
-
Step 200
200
#DDD6DE
oklch(88.4% 0.013 321.9)
-
Step 300
300
#C8BCC9
oklch(80.9% 0.022 323.5)
-
Step 400
400
#AC99AE
oklch(70.6% 0.037 323)
-
Step 500
500
#988099
oklch(63% 0.046 324.9)
-
Step 600
600
#826A84
oklch(55.6% 0.049 323.7)
-
Step 700
700
#6E5870
oklch(49.1% 0.046 323.6)
-
Step 800
800
#5A485B
oklch(42.7% 0.039 324.5)
-
Step 900
900 (this color)
#3E313F
oklch(33.3% 0.03 323.9)
-
Step 950
950
#2B232C
oklch(26.9% 0.02 322.5)
#3E313F 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) | #303440 | 0.025 |
| Deuteranopia (no green cones) | #33363E | 0.025 |
| Tritanopia (no blue cones) | #3F3236 | 0.017 |
| Achromatopsia (no color) | #353535 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E313F
#3E313F
oklch(33.3% 0.03 323.9)
- #2D3A2C
#2D3A2C
oklch(33.2% 0.03 143)
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 #3E313F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.032
- Gunmetal #293241 ΔE 0.036
- Space Cadet #2B2D42 ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.063
- Midnight Green #073B4C ΔE 0.070
- Charcoal #264653 ΔE 0.070
Use #3E313F 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.