#436E65
Closest named color: Dark Aquamarine (#017371). oklch(50.4% 0.05 179.4), rgb(67, 110, 101).
Aa
White text reads best on this color (5.74:1).
About this color
#436E65 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.050 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.039 away. White text reads best on it, at 5.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #436E65 |
| RGB | rgb(67, 110, 101) |
| HSL | hsl(167, 24%, 35%) |
| OKLCH | oklch(50.4% 0.05 179.4) |
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 #436E65 | 5.74:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #436E65 | 3.65:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #436E65 text on white | 5.74:1 | AA | Lc 78.7 | Fine for body text |
| #436E65 text on black | 3.65:1 | AA large text | Lc -23.1 | 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
#D0DCD9
oklch(88.5% 0.014 179.4)
-
Step 300
300
#B1C6C1
oklch(80.9% 0.024 179.8)
-
Step 400
400
#87A9A1
oklch(70.7% 0.039 179.2)
-
Step 500
500
#68948A
oklch(63.2% 0.05 178.9)
-
Step 600
600
#4F7E74
oklch(55.6% 0.054 179.2)
-
Step 700
700 (this color)
#436E65
oklch(50.4% 0.05 179.4)
-
Step 800
800
#35574F
oklch(42.8% 0.042 177.6)
-
Step 900
900
#2E4742
oklch(37.6% 0.032 180.6)
-
Step 950
950
#1B2A27
oklch(27% 0.021 180.8)
#436E65 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) | #6B6965 | 0.054 |
| Deuteranopia (no green cones) | #636466 | 0.050 |
| Tritanopia (no blue cones) | #356F6B | 0.015 |
| Achromatopsia (no color) | #666666 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436E65
#436E65
oklch(50.4% 0.05 179.4)
- #7D5863
#7D5863
oklch(50.3% 0.051 359.6)
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 #436E65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.039
- Deep Turquoise #017374 ΔE 0.040
- Slate #516572 ΔE 0.043
- Dark Aqua #05696B ΔE 0.047
- Bluegreen #017A79 ΔE 0.047
- Deep Aqua #08787F ΔE 0.049
- Dim Gray #696969 ΔE 0.053
- Dark Green Blue #1F6357 ΔE 0.054
Use #436E65 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.