#436D6F
Closest named color: Slate (#516572). oklch(50.5% 0.047 199.6), rgb(67, 109, 111).
Aa
White text reads best on this color (5.74:1).
About this color
#436D6F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.047 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.030 away. White text reads best on it, at 5.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #436D6F |
| RGB | rgb(67, 109, 111) |
| HSL | hsl(183, 25%, 35%) |
| OKLCH | oklch(50.5% 0.047 199.6) |
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 #436D6F | 5.74:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #436D6F | 3.65:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #436D6F text on white | 5.74:1 | AA | Lc 78.7 | Fine for body text |
| #436D6F 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D0DCDC
oklch(88.5% 0.013 196.9)
-
Step 300
300
#B1C5C6
oklch(80.9% 0.022 200.4)
-
Step 400
400
#87A8A9
oklch(70.7% 0.036 198.7)
-
Step 500
500
#689294
oklch(63% 0.046 199.8)
-
Step 600
600
#4E7D7F
oklch(55.7% 0.051 199.2)
-
Step 700
700 (this color)
#436D6F
oklch(50.5% 0.047 199.6)
-
Step 800
800
#345657
oklch(42.8% 0.04 198.2)
-
Step 900
900
#2E4748
oklch(37.8% 0.031 199.1)
-
Step 950
950
#1B292A
oklch(26.9% 0.019 201.6)
#436D6F 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) | #67696F | 0.048 |
| Deuteranopia (no green cones) | #60636F | 0.046 |
| Tritanopia (no blue cones) | #31706D | 0.020 |
| Achromatopsia (no color) | #666666 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436D6F
#436D6F
oklch(50.5% 0.047 199.6)
- #7D5A5A
#7D5A5A
oklch(50.4% 0.046 18.8)
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 #436D6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.030
- Deep Turquoise #017374 ΔE 0.039
- Dark Aquamarine #017371 ΔE 0.040
- Deep Aqua #08787F ΔE 0.044
- Dark Aqua #05696B ΔE 0.046
- Bluegreen #017A79 ΔE 0.047
- Dim Gray #696969 ΔE 0.050
- Metallic Blue #4F738E ΔE 0.052
Use #436D6F 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.