#366A67
Closest named color: Dark Aqua (#05696B). oklch(48.7% 0.056 190.6), rgb(54, 106, 103).
Aa
White text reads best on this color (6.15:1).
About this color
#366A67 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 49%, its chroma 0.056 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.028 away. White text reads best on it, at 6.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.41:1 |
| White text | 6.15:1 |
Values
| HEX | #366A67 |
| RGB | rgb(54, 106, 103) |
| HSL | hsl(177, 33%, 31%) |
| OKLCH | oklch(48.7% 0.056 190.6) |
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 #366A67 | 6.15:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #366A67 | 3.41:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #366A67 text on white | 6.15:1 | AA | Lc 80.6 | Fine for body text |
| #366A67 text on black | 3.41:1 | AA large text | Lc -21.3 | 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 700.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CFDCDB
oklch(88.4% 0.014 191.4)
-
Step 300
300
#AEC7C4
oklch(81% 0.027 187.9)
-
Step 400
400
#82AAA7
oklch(70.8% 0.044 190.5)
-
Step 500
500
#619591
oklch(63.2% 0.056 189.7)
-
Step 600
600
#467F7B
oklch(55.6% 0.061 189.7)
-
Step 700
700 (this color)
#366A67
oklch(48.7% 0.056 190.6)
-
Step 800
800
#2E5755
oklch(42.6% 0.046 191.5)
-
Step 900
900
#2A4846
oklch(37.8% 0.036 190.3)
-
Step 950
950
#192A29
oklch(27% 0.023 191.2)
#366A67 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) | #656567 | 0.060 |
| Deuteranopia (no green cones) | #5C5F68 | 0.056 |
| Tritanopia (no blue cones) | #1B6C69 | 0.019 |
| Achromatopsia (no color) | #616161 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #366A67
#366A67
oklch(48.7% 0.056 190.6)
- #7C5258
#7C5258
oklch(48.7% 0.057 10)
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 #366A67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.028
- Dark Aquamarine #017371 ΔE 0.033
- Deep Turquoise #017374 ΔE 0.034
- Dark Green Blue #1F6357 ΔE 0.039
- Slate #516572 ΔE 0.042
- Deep Aqua #08787F ΔE 0.049
- Bluegreen #017A79 ΔE 0.050
- Petrol #005F6A ΔE 0.052
Use #366A67 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.