#334D56
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.3% 0.035 221.6), rgb(51, 77, 86).
Aa
White text reads best on this color (8.98:1).
About this color
#334D56 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.035 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.016 away. White text reads best on it, at 8.98:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.33:1 |
| White text | 8.98:1 |
Values
| HEX | #334D56 |
| RGB | rgb(51, 77, 86) |
| HSL | hsl(195, 26%, 27%) |
| OKLCH | oklch(40.3% 0.035 221.6) |
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 #334D56 | 8.98:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #334D56 | 2.33:1 | Fails | Lc 13.4 | Not readable |
| #334D56 text on white | 8.98:1 | AAA | Lc 90.6 | Preferred for body text |
| #334D56 text on black | 2.33:1 | Fails | Lc -11.7 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D1DBDE
oklch(88.5% 0.012 217.6)
-
Step 300
300
#B3C4CA
oklch(80.9% 0.02 220.9)
-
Step 400
400
#8BA6AF
oklch(70.8% 0.033 220)
-
Step 500
500
#6E909C
oklch(63.2% 0.042 221.5)
-
Step 600
600
#557A86
oklch(55.6% 0.046 220.1)
-
Step 700
700
#456672
oklch(49% 0.043 222.7)
-
Step 800
800 (this color)
#334D56
oklch(40.3% 0.035 221.6)
-
Step 900
900
#32454C
oklch(37.7% 0.027 222.6)
-
Step 950
950
#1D282C
oklch(26.8% 0.017 222.1)
#334D56 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) | #484C57 | 0.030 |
| Deuteranopia (no green cones) | #424756 | 0.027 |
| Tritanopia (no blue cones) | #265050 | 0.022 |
| Achromatopsia (no color) | #494949 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334D56
#334D56
oklch(40.3% 0.035 221.6)
- #59423A
#59423A
oklch(40.2% 0.035 40)
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 #334D56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.016
- Charcoal #264653 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.030
- Deep Teal #00555A ΔE 0.039
- Dark Teal #014D4E ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.043
- Dark Blue Green #005249 ΔE 0.050
- Petrol #005F6A ΔE 0.060
Use #334D56 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.