#286F63
Closest named color: Dark Aquamarine (#017371). oklch(49.4% 0.073 180), rgb(40, 111, 99).
Aa
White text reads best on this color (5.92:1).
About this color
#286F63 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.073 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.023 away. White text reads best on it, at 5.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.54:1 |
| White text | 5.92:1 |
Values
| HEX | #286F63 |
| RGB | rgb(40, 111, 99) |
| HSL | hsl(170, 47%, 30%) |
| OKLCH | oklch(49.4% 0.073 180) |
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 #286F63 | 5.92:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #286F63 | 3.54:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #286F63 text on white | 5.92:1 | AA | Lc 79.4 | Fine for body text |
| #286F63 text on black | 3.54:1 | AA large text | Lc -22.4 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#A9C8C1
oklch(80.8% 0.035 180.2)
-
Step 400
400
#79ADA2
oklch(70.8% 0.057 179.9)
-
Step 500
500
#54988B
oklch(63.1% 0.072 180.1)
-
Step 600
600
#368275
oklch(55.5% 0.078 180.3)
-
Step 700
700 (this color)
#286F63
oklch(49.4% 0.073 180)
-
Step 800
800
#225A50
oklch(42.7% 0.061 179.6)
-
Step 900
900
#224A42
oklch(37.7% 0.048 178.9)
-
Step 950
950
#152B27
oklch(26.9% 0.029 181)
#286F63 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) | #6A6863 | 0.077 |
| Deuteranopia (no green cones) | #606164 | 0.073 |
| Tritanopia (no blue cones) | #00716B | 0.017 |
| Achromatopsia (no color) | #646464 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #286F63
#286F63
oklch(49.4% 0.073 180)
- #844F60
#844F60
oklch(49.4% 0.074 359.5)
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 #286F63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.023
- Deep Turquoise #017374 ΔE 0.027
- Dark Aqua #05696B ΔE 0.031
- Bluegreen #017A79 ΔE 0.040
- Dark Green Blue #1F6357 ΔE 0.040
- Deep Aqua #08787F ΔE 0.044
- Teal #008080 ΔE 0.057
- Slate #516572 ΔE 0.062
Use #286F63 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.