#334639
Closest named color: Charcoal Grey (#3C4142). oklch(37.4% 0.033 154.7), rgb(51, 70, 57).
Aa
White text reads best on this color (10.11:1).
About this color
#334639 is a dark, muted green. In OKLCH its lightness is 37%, its chroma 0.033 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.030 away. White text reads best on it, at 10.11:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.07:1 |
| White text | 10.11:1 |
Values
| HEX | #334639 |
| RGB | rgb(51, 70, 57) |
| HSL | hsl(139, 16%, 24%) |
| OKLCH | oklch(37.4% 0.033 154.7) |
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 #334639 | 10.11:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #334639 | 2.07:1 | Fails | Lc 10.5 | Not readable |
| #334639 text on white | 10.11:1 | AAA | Lc 93.5 | Preferred for body text |
| #334639 text on black | 2.07:1 | Fails | Lc -9.0 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD5
oklch(88.5% 0.014 155.6)
-
Step 300
300
#B5C6BA
oklch(81% 0.025 155)
-
Step 400
400
#8EA896
oklch(70.6% 0.039 155.1)
-
Step 500
500
#72937C
oklch(63.1% 0.05 154.4)
-
Step 600
600
#5A7D65
oklch(55.6% 0.054 154.4)
-
Step 700
700
#496954
oklch(48.9% 0.05 155.4)
-
Step 800
800
#3D5645
oklch(42.7% 0.041 154.6)
-
Step 900
900 (this color)
#334639
oklch(37.4% 0.033 154.7)
-
Step 950
950
#1F2A22
oklch(27.2% 0.021 153.3)
#334639 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) | #464338 | 0.030 |
| Deuteranopia (no green cones) | #43413A | 0.029 |
| Tritanopia (no blue cones) | #304642 | 0.015 |
| Achromatopsia (no color) | #424242 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334639
#334639
oklch(37.4% 0.033 154.7)
- #4C3A48
#4C3A48
oklch(37.3% 0.034 334.2)
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 #334639, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.030
- Dark Slate Gray #2F4F4F ΔE 0.039
- Charcoal #264653 ΔE 0.046
- Onyx #343A40 ΔE 0.046
- Dark Teal #014D4E ΔE 0.046
- Dark Blue Green #005249 ΔE 0.048
- Evergreen #05472A ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.059
Use #334639 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.