#355D5E
Closest named color: Dark Green Blue (#1F6357). oklch(44.9% 0.045 197.7), rgb(53, 93, 94).
Aa
White text reads best on this color (7.29:1).
About this color
#355D5E is a dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.045 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.031 away. White text reads best on it, at 7.29:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.87:1 |
| White text | 7.29:1 |
Values
| HEX | #355D5E |
| RGB | rgb(53, 93, 94) |
| HSL | hsl(181, 28%, 29%) |
| OKLCH | oklch(44.9% 0.045 197.7) |
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 #355D5E | 7.29:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #355D5E | 2.87:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #355D5E text on white | 7.29:1 | AAA | Lc 85.3 | Fine for body text |
| #355D5E text on black | 2.87:1 | Fails | Lc -16.8 | 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
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CFDCDC
oklch(88.5% 0.014 196.9)
-
Step 300
300
#AEC6C7
oklch(80.9% 0.026 199.7)
-
Step 400
400
#82A9AA
oklch(70.7% 0.042 198.2)
-
Step 500
500
#619495
oklch(63.1% 0.054 197.4)
-
Step 600
600
#477E80
oklch(55.6% 0.058 198.6)
-
Step 700
700
#386A6C
oklch(49% 0.054 198.9)
-
Step 800
800 (this color)
#355D5E
oklch(44.9% 0.045 197.7)
-
Step 900
900
#2A4748
oklch(37.6% 0.035 198.6)
-
Step 950
950
#192A2A
oklch(27% 0.023 195.9)
#355D5E 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) | #585A5E | 0.046 |
| Deuteranopia (no green cones) | #51545E | 0.044 |
| Tritanopia (no blue cones) | #225F5D | 0.018 |
| Achromatopsia (no color) | #565656 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355D5E
#355D5E
oklch(44.9% 0.045 197.7)
- #6C4B4C
#6C4B4C
oklch(44.9% 0.045 17)
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 #355D5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.031
- Petrol #005F6A ΔE 0.034
- Dark Aqua #05696B ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.047
- Deep Teal #00555A ΔE 0.047
- YInMn Blue #415A77 ΔE 0.049
- Slate #516572 ΔE 0.054
- Dark Blue Green #005249 ΔE 0.063
Use #355D5E 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.