#286E66
Closest named color: Dark Aquamarine (#017371). oklch(49.2% 0.071 184.8), rgb(40, 110, 102).
Aa
White text reads best on this color (5.97:1).
About this color
#286E66 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.071 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.021 away. White text reads best on it, at 5.97:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #286E66 |
| RGB | rgb(40, 110, 102) |
| HSL | hsl(173, 47%, 29%) |
| OKLCH | oklch(49.2% 0.071 184.8) |
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 #286E66 | 5.97:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #286E66 | 3.51:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #286E66 text on white | 5.97:1 | AA | Lc 79.7 | Fine for body text |
| #286E66 text on black | 3.51:1 | AA large text | Lc -22.2 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDDDB
oklch(88.4% 0.018 188.3)
-
Step 300
300
#A9C8C3
oklch(80.8% 0.034 184.7)
-
Step 400
400
#7AACA5
oklch(70.7% 0.054 185.2)
-
Step 500
500
#55978F
oklch(63% 0.069 185.6)
-
Step 600
600
#368279
oklch(55.7% 0.076 184.7)
-
Step 700
700 (this color)
#286E66
oklch(49.2% 0.071 184.8)
-
Step 800
800
#235953
oklch(42.6% 0.058 185.4)
-
Step 900
900
#224A45
oklch(37.8% 0.046 184.8)
-
Step 950
950
#152B28
oklch(27% 0.029 184.5)
#286E66 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) | #696866 | 0.076 |
| Deuteranopia (no green cones) | #5E6067 | 0.071 |
| Tritanopia (no blue cones) | #00706B | 0.016 |
| Achromatopsia (no color) | #636363 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #286E66
#286E66
oklch(49.2% 0.071 184.8)
- #83505C
#83505C
oklch(49.3% 0.07 4.7)
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 #286E66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.021
- Deep Turquoise #017374 ΔE 0.024
- Dark Aqua #05696B ΔE 0.026
- Dark Green Blue #1F6357 ΔE 0.039
- Bluegreen #017A79 ΔE 0.039
- Deep Aqua #08787F ΔE 0.042
- Petrol #005F6A ΔE 0.057
- Slate #516572 ΔE 0.057
Use #286E66 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.