#36554B
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.2% 0.041 172), rgb(54, 85, 75).
Aa
White text reads best on this color (8.21:1).
About this color
#36554B is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.041 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.025 away. White text reads best on it, at 8.21:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #36554B |
| RGB | rgb(54, 85, 75) |
| HSL | hsl(161, 22%, 27%) |
| OKLCH | oklch(42.2% 0.041 172) |
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 #36554B | 8.21:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #36554B | 2.55:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #36554B text on white | 8.21:1 | AAA | Lc 88.3 | Fine for body text |
| #36554B text on black | 2.55:1 | Fails | Lc -13.8 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D1DCD8
oklch(88.5% 0.013 172.3)
-
Step 300
300
#B2C6BF
oklch(80.9% 0.024 172.7)
-
Step 400
400
#89A99E
oklch(70.8% 0.039 172.3)
-
Step 500
500
#6C9386
oklch(63% 0.047 172.2)
-
Step 600
600
#537E70
oklch(55.7% 0.053 171.9)
-
Step 700
700
#436A5D
oklch(49.1% 0.049 171.2)
-
Step 800
800 (this color)
#36554B
oklch(42.2% 0.041 172)
-
Step 900
900
#304740
oklch(37.6% 0.031 173.7)
-
Step 950
950
#1C2A25
oklch(27% 0.021 170.6)
#36554B 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) | #53514B | 0.042 |
| Deuteranopia (no green cones) | #4E4D4C | 0.041 |
| Tritanopia (no blue cones) | #2D5652 | 0.013 |
| Achromatopsia (no color) | #4F4F4F | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #36554B
#36554B
oklch(42.2% 0.041 172)
- #5F4550
#5F4550
oklch(42.2% 0.039 351.8)
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 #36554B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.025
- Deep Teal #00555A ΔE 0.042
- Dark Blue Green #005249 ΔE 0.042
- Dark Green Blue #1F6357 ΔE 0.044
- Dark Teal #014D4E ΔE 0.052
- Pine #2B5D34 ΔE 0.053
- Petrol #005F6A ΔE 0.055
- Charcoal #264653 ΔE 0.060
Use #36554B 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.