#334248
Closest named color: Charcoal Grey (#3C4142). oklch(36.8% 0.022 224.2), rgb(51, 66, 72).
Aa
White text reads best on this color (10.42:1).
About this color
#334248 is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.016 away. White text reads best on it, at 10.42:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.01:1 |
| White text | 10.42:1 |
Values
| HEX | #334248 |
| RGB | rgb(51, 66, 72) |
| HSL | hsl(197, 17%, 24%) |
| OKLCH | oklch(36.8% 0.022 224.2) |
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 #334248 | 10.42:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #334248 | 2.01:1 | Fails | Lc 9.7 | Not readable |
| #334248 text on white | 10.42:1 | AAA | Lc 94.2 | Preferred for body text |
| #334248 text on black | 2.01:1 | Fails | Lc -8.4 | 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
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D3DADE
oklch(88.4% 0.009 232.4)
-
Step 300
300
#B6C3C9
oklch(80.9% 0.017 227)
-
Step 400
400
#90A5AD
oklch(70.8% 0.026 222.7)
-
Step 500
500
#748E99
oklch(63% 0.034 225.4)
-
Step 600
600
#5C7883
oklch(55.5% 0.037 223.9)
-
Step 700
700
#4C656F
oklch(49.1% 0.034 224.4)
-
Step 800
800
#3E535B
oklch(42.8% 0.029 223.3)
-
Step 900
900 (this color)
#334248
oklch(36.8% 0.022 224.2)
-
Step 950
950
#1F282C
oklch(27% 0.015 226.6)
#334248 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) | #3F4148 | 0.018 |
| Deuteranopia (no green cones) | #3B3F48 | 0.015 |
| Tritanopia (no blue cones) | #2D4444 | 0.014 |
| Achromatopsia (no color) | #404040 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334248
#334248
oklch(36.8% 0.022 224.2)
- #4A3C36
#4A3C36
oklch(36.9% 0.022 44.5)
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 #334248, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.016
- Charcoal #264653 ΔE 0.023
- Onyx #343A40 ΔE 0.026
- Dark Grey Blue #29465B ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Teal #014D4E ΔE 0.048
- Midnight Green #073B4C ΔE 0.054
Use #334248 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.