#354E55
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.6% 0.033 217.1), rgb(53, 78, 85).
Aa
White text reads best on this color (8.85:1).
About this color
#354E55 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.033 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.014 away. White text reads best on it, at 8.85:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.37:1 |
| White text | 8.85:1 |
Values
| HEX | #354E55 |
| RGB | rgb(53, 78, 85) |
| HSL | hsl(193, 23%, 27%) |
| OKLCH | oklch(40.6% 0.033 217.1) |
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 #354E55 | 8.85:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #354E55 | 2.37:1 | Fails | Lc 13.7 | Not readable |
| #354E55 text on white | 8.85:1 | AAA | Lc 90.2 | Preferred for body text |
| #354E55 text on black | 2.37:1 | Fails | Lc -12.1 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B4C4C9
oklch(81% 0.019 218.4)
-
Step 400
400
#8CA6AD
oklch(70.8% 0.031 215.8)
-
Step 500
500
#6F9099
oklch(63.2% 0.039 216.3)
-
Step 600
600
#577A84
oklch(55.7% 0.042 217.4)
-
Step 700
700
#47676F
oklch(49.2% 0.039 215)
-
Step 800
800 (this color)
#354E55
oklch(40.6% 0.033 217.1)
-
Step 900
900
#32454A
oklch(37.6% 0.025 215.7)
-
Step 950
950
#1E282C
oklch(26.9% 0.016 224.2)
#354E55 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) | #494C55 | 0.029 |
| Deuteranopia (no green cones) | #444855 | 0.027 |
| Tritanopia (no blue cones) | #295150 | 0.020 |
| Achromatopsia (no color) | #4A4A4A | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #354E55
#354E55
oklch(40.6% 0.033 217.1)
- #5A433D
#5A433D
oklch(40.6% 0.034 35.1)
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 #354E55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.014
- Charcoal #264653 ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.035
- Deep Teal #00555A ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.044
- Dark Teal #014D4E ΔE 0.044
- Dark Blue Green #005249 ΔE 0.049
- Petrol #005F6A ΔE 0.058
Use #354E55 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.