#334339
Closest named color: Charcoal Grey (#3C4142). oklch(36.6% 0.027 157.4), rgb(51, 67, 57).
Aa
White text reads best on this color (10.48:1).
About this color
#334339 is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.024 away. White text reads best on it, at 10.48:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.00:1 |
| White text | 10.48:1 |
Values
| HEX | #334339 |
| RGB | rgb(51, 67, 57) |
| HSL | hsl(143, 14%, 23%) |
| OKLCH | oklch(36.6% 0.027 157.4) |
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 #334339 | 10.48:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #334339 | 2.00:1 | Fails | Lc 9.6 | Not readable |
| #334339 text on white | 10.48:1 | AAA | Lc 94.3 | Preferred for body text |
| #334339 text on black | 2.00:1 | Fails | Lc -8.2 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D3DBD6
oklch(88.4% 0.011 158.8)
-
Step 300
300
#B7C5BB
oklch(81% 0.021 154.8)
-
Step 400
400
#91A799
oklch(70.7% 0.032 157.6)
-
Step 500
500
#759180
oklch(63% 0.041 158.4)
-
Step 600
600
#5E7C69
oklch(55.7% 0.045 156.8)
-
Step 700
700
#4D6857
oklch(49% 0.042 156.9)
-
Step 800
800
#3F5548
oklch(42.7% 0.035 158.6)
-
Step 900
900 (this color)
#334339
oklch(36.6% 0.027 157.4)
-
Step 950
950
#202923
oklch(27% 0.017 155.9)
#334339 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) | #434038 | 0.026 |
| Deuteranopia (no green cones) | #403F3A | 0.024 |
| Tritanopia (no blue cones) | #304340 | 0.012 |
| Achromatopsia (no color) | #3F3F3F | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334339
#334339
oklch(36.6% 0.027 157.4)
- #483944
#483944
oklch(36.5% 0.028 335.8)
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 #334339, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.024
- Onyx #343A40 ΔE 0.036
- Charcoal #264653 ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.044
- Dark Teal #014D4E ΔE 0.049
- Evergreen #05472A ΔE 0.055
- Dark Blue Green #005249 ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.056
Use #334339 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.