#436663
Closest named color: Slate (#516572). oklch(48.3% 0.041 189.1), rgb(67, 102, 99).
Aa
White text reads best on this color (6.32:1).
About this color
#436663 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.041 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.033 away. White text reads best on it, at 6.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.31:1 |
| White text | 6.32:1 |
Values
| HEX | #436663 |
| RGB | rgb(67, 102, 99) |
| HSL | hsl(175, 21%, 33%) |
| OKLCH | oklch(48.3% 0.041 189.1) |
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 #436663 | 6.32:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #436663 | 3.31:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #436663 text on white | 6.32:1 | AA | Lc 81.4 | Fine for body text |
| #436663 text on black | 3.31:1 | AA large text | Lc -20.4 | 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
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D1DBDA
oklch(88.4% 0.011 189.8)
-
Step 300
300
#B3C5C3
oklch(80.9% 0.02 188.7)
-
Step 400
400
#8BA7A4
oklch(70.6% 0.031 188.5)
-
Step 500
500
#6E928E
oklch(63.2% 0.04 187.7)
-
Step 600
600
#557C78
oklch(55.6% 0.044 188)
-
Step 700
700 (this color)
#436663
oklch(48.3% 0.041 189.1)
-
Step 800
800
#395553
oklch(42.7% 0.034 190.4)
-
Step 900
900
#314644
oklch(37.6% 0.027 188.8)
-
Step 950
950
#1D2928
oklch(26.9% 0.017 189.9)
#436663 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) | #626263 | 0.043 |
| Deuteranopia (no green cones) | #5C5E63 | 0.040 |
| Tritanopia (no blue cones) | #376865 | 0.013 |
| Achromatopsia (no color) | #606060 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #436663
#436663
oklch(48.3% 0.041 189.1)
- #735559
#735559
oklch(48.2% 0.04 9.8)
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 #436663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.033
- Dark Aqua #05696B ΔE 0.041
- Dark Green Blue #1F6357 ΔE 0.042
- Dark Aquamarine #017371 ΔE 0.050
- Deep Turquoise #017374 ΔE 0.050
- Dim Gray #696969 ΔE 0.056
- Petrol #005F6A ΔE 0.056
- YInMn Blue #415A77 ΔE 0.058
Use #436663 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.