#287668
Closest named color: Dark Aquamarine (#017371). oklch(51.4% 0.079 178.9), rgb(40, 118, 104).
Aa
White text reads best on this color (5.41:1).
About this color
#287668 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.079 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.024 away. White text reads best on it, at 5.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.88:1 |
| White text | 5.41:1 |
Values
| HEX | #287668 |
| RGB | rgb(40, 118, 104) |
| HSL | hsl(169, 49%, 31%) |
| OKLCH | oklch(51.4% 0.079 178.9) |
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 #287668 | 5.41:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #287668 | 3.88:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #287668 text on white | 5.41:1 | AA | Lc 76.7 | Fine for body text |
| #287668 text on black | 3.88:1 | AA large text | Lc -25.0 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CBDED9
oklch(88.5% 0.021 178.3)
-
Step 300
300
#A7C9C1
oklch(80.9% 0.038 179.4)
-
Step 400
400
#76ADA1
oklch(70.6% 0.061 179.3)
-
Step 500
500
#4F998A
oklch(63.1% 0.078 178.8)
-
Step 600
600
#2E8374
oklch(55.5% 0.084 179.2)
-
Step 700
700 (this color)
#287668
oklch(51.4% 0.079 178.9)
-
Step 800
800
#1D5B50
oklch(42.8% 0.065 179.1)
-
Step 900
900
#1F4A42
oklch(37.6% 0.05 179.6)
-
Step 950
950
#132C27
oklch(27.1% 0.033 179.2)
#287668 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) | #716F67 | 0.083 |
| Deuteranopia (no green cones) | #666769 | 0.078 |
| Tritanopia (no blue cones) | #007872 | 0.018 |
| Achromatopsia (no color) | #6A6A6A | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287668
#287668
oklch(51.4% 0.079 178.9)
- #8C5466
#8C5466
oklch(51.5% 0.078 359.5)
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 #287668, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.024
- Bluegreen #017A79 ΔE 0.026
- Deep Turquoise #017374 ΔE 0.027
- Deep Aqua #08787F ΔE 0.035
- Teal #008080 ΔE 0.040
- Dark Aqua #05696B ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.061
- Ocean #017B92 ΔE 0.064
Use #287668 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.