#334F4A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.4% 0.035 182.1), rgb(51, 79, 74).
Aa
White text reads best on this color (8.90:1).
About this color
#334F4A is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.035 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.009 away. White text reads best on it, at 8.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.35:1 |
| White text | 8.90:1 |
Values
| HEX | #334F4A |
| RGB | rgb(51, 79, 74) |
| HSL | hsl(169, 22%, 25%) |
| OKLCH | oklch(40.4% 0.035 182.1) |
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 #334F4A | 8.90:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #334F4A | 2.35:1 | Fails | Lc 13.6 | Not readable |
| #334F4A text on white | 8.90:1 | AAA | Lc 90.4 | Preferred for body text |
| #334F4A text on black | 2.35:1 | Fails | Lc -11.9 | 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 800.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D1DCD9
oklch(88.5% 0.013 178)
-
Step 300
300
#B3C5C1
oklch(80.9% 0.02 181)
-
Step 400
400
#8BA8A2
oklch(70.8% 0.033 181.4)
-
Step 500
500
#6E928B
oklch(63.1% 0.041 181.6)
-
Step 600
600
#557C75
oklch(55.5% 0.045 182.2)
-
Step 700
700
#456962
oklch(49.1% 0.043 180.9)
-
Step 800
800 (this color)
#334F4A
oklch(40.4% 0.035 182.1)
-
Step 900
900
#314643
oklch(37.6% 0.027 185.2)
-
Step 950
950
#1D2927
oklch(26.9% 0.017 183.7)
#334F4A 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) | #4D4C4A | 0.038 |
| Deuteranopia (no green cones) | #47484A | 0.035 |
| Tritanopia (no blue cones) | #2A504D | 0.010 |
| Achromatopsia (no color) | #4A4A4A | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334F4A
#334F4A
oklch(40.4% 0.035 182.1)
- #594147
#594147
oklch(40.4% 0.034 2.2)
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 #334F4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.009
- Dark Blue Green #005249 ΔE 0.037
- Deep Teal #00555A ΔE 0.039
- Dark Teal #014D4E ΔE 0.039
- Charcoal #264653 ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.061
Use #334F4A 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.