#436C65
Closest named color: Slate (#516572). oklch(49.9% 0.048 182.3), rgb(67, 108, 101).
Aa
White text reads best on this color (5.87:1).
About this color
#436C65 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.048 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.039 away. White text reads best on it, at 5.87:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.57:1 |
| White text | 5.87:1 |
Values
| HEX | #436C65 |
| RGB | rgb(67, 108, 101) |
| HSL | hsl(170, 23%, 34%) |
| OKLCH | oklch(49.9% 0.048 182.3) |
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 #436C65 | 5.87:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #436C65 | 3.57:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #436C65 text on white | 5.87:1 | AA | Lc 79.3 | Fine for body text |
| #436C65 text on black | 3.57:1 | AA large text | Lc -22.5 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCDA
oklch(88.5% 0.013 185.1)
-
Step 300
300
#B1C6C2
oklch(81% 0.024 183)
-
Step 400
400
#88A8A2
oklch(70.6% 0.036 182.6)
-
Step 500
500
#6A938C
oklch(63.1% 0.046 183.1)
-
Step 600
600
#507D76
oklch(55.5% 0.051 183.6)
-
Step 700
700 (this color)
#436C65
oklch(49.9% 0.048 182.3)
-
Step 800
800
#365651
oklch(42.7% 0.039 183.6)
-
Step 900
900
#2F4743
oklch(37.7% 0.03 183.1)
-
Step 950
950
#1C2A27
oklch(27.1% 0.02 180)
#436C65 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) | #686865 | 0.050 |
| Deuteranopia (no green cones) | #616266 | 0.048 |
| Tritanopia (no blue cones) | #356D6A | 0.014 |
| Achromatopsia (no color) | #646464 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436C65
#436C65
oklch(49.9% 0.048 182.3)
- #7A5860
#7A5860
oklch(49.9% 0.046 3.3)
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 #436C65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.039
- Dark Aquamarine #017371 ΔE 0.040
- Deep Turquoise #017374 ΔE 0.041
- Dark Aqua #05696B ΔE 0.044
- Dark Green Blue #1F6357 ΔE 0.050
- Bluegreen #017A79 ΔE 0.051
- Deep Aqua #08787F ΔE 0.051
- Dim Gray #696969 ΔE 0.052
Use #436C65 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.