#355F54
Closest named color: Dark Green Blue (#1F6357). oklch(45.1% 0.051 175.2), rgb(53, 95, 84).
Aa
White text reads best on this color (7.20:1).
About this color
#355F54 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.051 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.020 away. White text reads best on it, at 7.20:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #355F54 |
| RGB | rgb(53, 95, 84) |
| HSL | hsl(164, 28%, 29%) |
| OKLCH | oklch(45.1% 0.051 175.2) |
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 #355F54 | 7.20:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #355F54 | 2.91:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #355F54 text on white | 7.20:1 | AAA | Lc 84.9 | Fine for body text |
| #355F54 text on black | 2.91:1 | Fails | Lc -17.1 | Dividers and decoration only |
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
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CFDDD8
oklch(88.6% 0.016 172.6)
-
Step 300
300
#AEC7BF
oklch(80.9% 0.029 174.3)
-
Step 400
400
#82AB9F
oklch(70.8% 0.048 175)
-
Step 500
500
#619687
oklch(63.1% 0.061 174.5)
-
Step 600
600
#468071
oklch(55.6% 0.066 175.1)
-
Step 700
700
#376C5F
oklch(49% 0.061 175.8)
-
Step 800
800 (this color)
#355F54
oklch(45.1% 0.051 175.2)
-
Step 900
900
#2A4940
oklch(37.8% 0.04 173.6)
-
Step 950
950
#192B26
oklch(27.2% 0.026 174.9)
#355F54 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) | #5C5A54 | 0.053 |
| Deuteranopia (no green cones) | #555555 | 0.051 |
| Tritanopia (no blue cones) | #27605C | 0.016 |
| Achromatopsia (no color) | #575757 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355F54
#355F54
oklch(45.1% 0.051 175.2)
- #6D4A57
#6D4A57
oklch(45.2% 0.051 355.3)
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 #355F54, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.020
- Dark Aqua #05696B ΔE 0.043
- Petrol #005F6A ΔE 0.045
- Pine #2B5D34 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.052
- Deep Teal #00555A ΔE 0.054
- Spruce #0A5F38 ΔE 0.058
- Dark Blue Green #005249 ΔE 0.061
Use #355F54 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.