#287C6D
Closest named color: Bluegreen (#017A79). oklch(53.2% 0.083 178.7), rgb(40, 124, 109).
Aa
White text reads best on this color (5.00:1).
About this color
#287C6D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.083 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.025 away. White text reads best on it, at 5.00:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #287C6D |
| RGB | rgb(40, 124, 109) |
| HSL | hsl(169, 51%, 32%) |
| OKLCH | oklch(53.2% 0.083 178.7) |
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 #287C6D | 5.00:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #287C6D | 4.19:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #287C6D text on white | 5.00:1 | AA | Lc 74.3 | Content text, not long reading |
| #287C6D text on black | 4.19:1 | AA large text | Lc -27.4 | 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 600.
-
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
#A8C9C1
oklch(80.9% 0.037 179)
-
Step 400
400
#77ADA1
oklch(70.6% 0.06 179.1)
-
Step 500
500
#51998A
oklch(63.2% 0.076 178.5)
-
Step 600
600 (this color)
#287C6D
oklch(53.2% 0.083 178.7)
-
Step 700
700
#226F61
oklch(49.1% 0.077 178.4)
-
Step 800
800
#1F5A4F
oklch(42.6% 0.064 178.6)
-
Step 900
900
#204A42
oklch(37.6% 0.049 179.4)
-
Step 950
950
#142C27
oklch(27.2% 0.032 178.7)
#287C6D 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) | #77746C | 0.088 |
| Deuteranopia (no green cones) | #6B6C6E | 0.083 |
| Tritanopia (no blue cones) | #007E77 | 0.017 |
| Achromatopsia (no color) | #6F6F6F | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287C6D
#287C6D
oklch(53.2% 0.083 178.7)
- #93576B
#93576B
oklch(53.1% 0.083 358.9)
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 #287C6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.025
- Teal #008080 ΔE 0.029
- Deep Aqua #08787F ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.036
- Deep Turquoise #017374 ΔE 0.038
- Dark Cyan #008B8B ΔE 0.053
- Ocean #017B92 ΔE 0.060
- Dark Aqua #05696B ΔE 0.065
Use #287C6D 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.