#3B4249
Closest named color: Charcoal Grey (#3C4142). oklch(37.5% 0.015 248.2), rgb(59, 66, 73).
Aa
White text reads best on this color (10.18:1).
About this color
#3B4249 is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.011 away. White text reads best on it, at 10.18:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.06:1 |
| White text | 10.18:1 |
Values
| HEX | #3B4249 |
| RGB | rgb(59, 66, 73) |
| HSL | hsl(210, 11%, 26%) |
| OKLCH | oklch(37.5% 0.015 248.2) |
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 #3B4249 | 10.18:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #3B4249 | 2.06:1 | Fails | Lc 10.3 | Not readable |
| #3B4249 text on white | 10.18:1 | AAA | Lc 93.7 | Preferred for body text |
| #3B4249 text on black | 2.06:1 | Fails | Lc -8.9 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E8EAEC
oklch(93.6% 0.003 247.9)
-
Step 200
200
#D6D9DD
oklch(88.4% 0.006 255.5)
-
Step 300
300
#BBC1C8
oklch(80.8% 0.012 252.1)
-
Step 400
400
#98A2AC
oklch(70.7% 0.019 248.1)
-
Step 500
500
#7F8B97
oklch(63.1% 0.023 248.2)
-
Step 600
600
#687582
oklch(55.6% 0.026 248.3)
-
Step 700
700
#57626E
oklch(49.1% 0.024 250.6)
-
Step 800
800
#475059
oklch(42.7% 0.019 248.3)
-
Step 900
900 (this color)
#3B4249
oklch(37.5% 0.015 248.2)
-
Step 950
950
#23272B
oklch(27% 0.009 248.2)
#3B4249 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) | #3F4249 | 0.006 |
| Deuteranopia (no green cones) | #3E4049 | 0.008 |
| Tritanopia (no blue cones) | #374444 | 0.014 |
| Achromatopsia (no color) | #414141 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B4249
#3B4249
oklch(37.5% 0.015 248.2)
- #474039
#474039
oklch(37.6% 0.015 67.3)
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 #3B4249, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.011
- Onyx #343A40 ΔE 0.030
- Charcoal #264653 ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.048
- Dark Teal #014D4E ΔE 0.057
- Gunmetal #293241 ΔE 0.062
Use #3B4249 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.