#436F70
Closest named color: Slate (#516572). oklch(51% 0.049 197.6), rgb(67, 111, 112).
Aa
White text reads best on this color (5.60:1).
About this color
#436F70 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.049 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.035 away. White text reads best on it, at 5.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #436F70 |
| RGB | rgb(67, 111, 112) |
| HSL | hsl(181, 25%, 35%) |
| OKLCH | oklch(51% 0.049 197.6) |
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 #436F70 | 5.60:1 | AA | Lc -83.2 | Fine for body text |
| Black text on #436F70 | 3.74:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #436F70 text on white | 5.60:1 | AA | Lc 77.9 | Fine for body text |
| #436F70 text on black | 3.74:1 | AA large text | Lc -23.8 | 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
#B0C6C6
oklch(81% 0.024 196.7)
-
Step 400
400
#86A8A9
oklch(70.7% 0.037 198.6)
-
Step 500
500
#679394
oklch(63.2% 0.048 197.8)
-
Step 600
600
#4D7D7E
oklch(55.6% 0.052 197.4)
-
Step 700
700 (this color)
#436F70
oklch(51% 0.049 197.6)
-
Step 800
800
#335657
oklch(42.7% 0.041 198.1)
-
Step 900
900
#2D4747
oklch(37.7% 0.032 195.9)
-
Step 950
950
#1B2A2A
oklch(27.2% 0.02 196)
#436F70 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) | #696B70 | 0.050 |
| Deuteranopia (no green cones) | #616570 | 0.047 |
| Tritanopia (no blue cones) | #30726F | 0.019 |
| Achromatopsia (no color) | #686868 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436F70
#436F70
oklch(51% 0.049 197.6)
- #805B5C
#805B5C
oklch(51% 0.049 17.1)
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 #436F70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.035
- Deep Turquoise #017374 ΔE 0.038
- Dark Aquamarine #017371 ΔE 0.038
- Deep Aqua #08787F ΔE 0.041
- Bluegreen #017A79 ΔE 0.043
- Dark Aqua #05696B ΔE 0.048
- Dim Gray #696969 ΔE 0.050
- Metallic Blue #4F738E ΔE 0.051
Use #436F70 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.