#365255
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.8% 0.034 204.4), rgb(54, 82, 85).
Aa
White text reads best on this color (8.41:1).
About this color
#365255 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.034 and its hue 204°. 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 8.41:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.49:1 |
| White text | 8.41:1 |
Values
| HEX | #365255 |
| RGB | rgb(54, 82, 85) |
| HSL | hsl(186, 22%, 27%) |
| OKLCH | oklch(41.8% 0.034 204.4) |
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 #365255 | 8.41:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #365255 | 2.49:1 | Fails | Lc 15.0 | Dividers and decoration only |
| #365255 text on white | 8.41:1 | AAA | Lc 89.0 | Fine for body text |
| #365255 text on black | 2.49:1 | Fails | Lc -13.2 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D1DBDC
oklch(88.4% 0.011 204.1)
-
Step 300
300
#B3C5C6
oklch(81% 0.02 200.8)
-
Step 400
400
#8AA7AA
oklch(70.7% 0.032 204.2)
-
Step 500
500
#6D9195
oklch(63.1% 0.04 204.7)
-
Step 600
600
#547B7F
oklch(55.5% 0.044 204)
-
Step 700
700
#44686C
oklch(49.2% 0.042 204.7)
-
Step 800
800 (this color)
#365255
oklch(41.8% 0.034 204.4)
-
Step 900
900
#314648
oklch(37.7% 0.026 203.5)
-
Step 950
950
#1D292A
oklch(27% 0.017 202.6)
#365255 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) | #4E5055 | 0.034 |
| Deuteranopia (no green cones) | #484C55 | 0.030 |
| Tritanopia (no blue cones) | #2A5453 | 0.015 |
| Achromatopsia (no color) | #4D4D4D | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #365255
#365255
oklch(41.8% 0.034 204.4)
- #5E4543
#5E4543
oklch(41.7% 0.035 23.9)
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 #365255, 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
- Deep Teal #00555A ΔE 0.037
- Charcoal #264653 ΔE 0.046
- Dark Blue Green #005249 ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.048
- Dark Teal #014D4E ΔE 0.048
- Petrol #005F6A ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.054
Use #365255 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.