#436660
Closest named color: Slate (#516572). oklch(48.2% 0.042 182.6), rgb(67, 102, 96).
Aa
White text reads best on this color (6.34:1).
About this color
#436660 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.042 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.037 away. White text reads best on it, at 6.34:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.30:1 |
| White text | 6.34:1 |
Values
| HEX | #436660 |
| RGB | rgb(67, 102, 96) |
| HSL | hsl(170, 21%, 33%) |
| OKLCH | oklch(48.2% 0.042 182.6) |
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 #436660 | 6.34:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #436660 | 3.30:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #436660 text on white | 6.34:1 | AA | Lc 81.5 | Fine for body text |
| #436660 text on black | 3.30:1 | AA large text | Lc -20.3 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D2DCDA
oklch(88.6% 0.011 182.8)
-
Step 300
300
#B3C5C2
oklch(80.9% 0.02 184.8)
-
Step 400
400
#8BA8A2
oklch(70.8% 0.033 181.4)
-
Step 500
500
#6E928B
oklch(63.1% 0.041 181.6)
-
Step 600
600
#567C75
oklch(55.6% 0.044 181.9)
-
Step 700
700 (this color)
#436660
oklch(48.2% 0.042 182.6)
-
Step 800
800
#395551
oklch(42.6% 0.034 184.9)
-
Step 900
900
#324643
oklch(37.6% 0.026 184.7)
-
Step 950
950
#1D2927
oklch(26.9% 0.017 183.7)
#436660 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) | #636260 | 0.045 |
| Deuteranopia (no green cones) | #5D5D61 | 0.043 |
| Tritanopia (no blue cones) | #386764 | 0.012 |
| Achromatopsia (no color) | #5F5F5F | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436660
#436660
oklch(48.2% 0.042 182.6)
- #73545C
#73545C
oklch(48.1% 0.043 1.8)
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 #436660, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.040
- Dark Aqua #05696B ΔE 0.041
- Dark Aquamarine #017371 ΔE 0.050
- Deep Turquoise #017374 ΔE 0.051
- Petrol #005F6A ΔE 0.057
- Dim Gray #696969 ΔE 0.057
- YInMn Blue #415A77 ΔE 0.062
Use #436660 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.