#355D5B
Closest named color: Dark Green Blue (#1F6357). oklch(44.8% 0.045 191.5), rgb(53, 93, 91).
Aa
White text reads best on this color (7.32:1).
About this color
#355D5B is a dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.045 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.028 away. White text reads best on it, at 7.32:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.86:1 |
| White text | 7.32:1 |
Values
| HEX | #355D5B |
| RGB | rgb(53, 93, 91) |
| HSL | hsl(177, 27%, 29%) |
| OKLCH | oklch(44.8% 0.045 191.5) |
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 #355D5B | 7.32:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #355D5B | 2.86:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #355D5B text on white | 7.32:1 | AAA | Lc 85.4 | Fine for body text |
| #355D5B text on black | 2.86:1 | Fails | Lc -16.7 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEB
oklch(93.5% 0.007 197)
-
Step 200
200
#CFDCDB
oklch(88.4% 0.014 191.4)
-
Step 300
300
#AEC6C5
oklch(80.8% 0.026 193.6)
-
Step 400
400
#82A9A7
oklch(70.6% 0.042 192.3)
-
Step 500
500
#629492
oklch(63.1% 0.054 192.7)
-
Step 600
600
#477F7C
oklch(55.7% 0.06 191.1)
-
Step 700
700
#386B68
oklch(49.1% 0.055 190.6)
-
Step 800
800 (this color)
#355D5B
oklch(44.8% 0.045 191.5)
-
Step 900
900
#2A4846
oklch(37.8% 0.036 190.3)
-
Step 950
950
#192A29
oklch(27% 0.023 191.2)
#355D5B 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) | #59595B | 0.049 |
| Deuteranopia (no green cones) | #52545B | 0.045 |
| Tritanopia (no blue cones) | #245F5C | 0.016 |
| Achromatopsia (no color) | #565656 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355D5B
#355D5B
oklch(44.8% 0.045 191.5)
- #6C4A4E
#6C4A4E
oklch(44.8% 0.047 11.3)
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 #355D5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.028
- Petrol #005F6A ΔE 0.036
- Dark Aqua #05696B ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.046
- Deep Teal #00555A ΔE 0.047
- YInMn Blue #415A77 ΔE 0.054
- Slate #516572 ΔE 0.057
- Dark Blue Green #005249 ΔE 0.061
Use #355D5B 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.