#287C6C
Closest named color: Bluegreen (#017A79). oklch(53.2% 0.084 177.7), rgb(40, 124, 108).
Aa
White text reads best on this color (5.01:1).
About this color
#287C6C is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.084 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.026 away. White text reads best on it, at 5.01:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.18:1 |
| White text | 5.01:1 |
Values
| HEX | #287C6C |
| RGB | rgb(40, 124, 108) |
| HSL | hsl(169, 51%, 32%) |
| OKLCH | oklch(53.2% 0.084 177.7) |
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 #287C6C | 5.01:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #287C6C | 4.18:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #287C6C text on white | 5.01:1 | AA | Lc 74.4 | Content text, not long reading |
| #287C6C text on black | 4.18:1 | AA large text | Lc -27.3 | 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
#A8C9C0
oklch(80.9% 0.038 177)
-
Step 400
400
#77ADA0
oklch(70.6% 0.06 177.8)
-
Step 500
500
#519989
oklch(63.1% 0.077 177.5)
-
Step 600
600 (this color)
#287C6C
oklch(53.2% 0.084 177.7)
-
Step 700
700
#226F60
oklch(49.1% 0.078 177.3)
-
Step 800
800
#1F5A4F
oklch(42.6% 0.064 178.6)
-
Step 900
900
#204A41
oklch(37.6% 0.05 177.5)
-
Step 950
950
#142C26
oklch(27.1% 0.032 175.7)
#287C6C 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) | #77746B | 0.088 |
| Deuteranopia (no green cones) | #6B6C6D | 0.083 |
| Tritanopia (no blue cones) | #007E77 | 0.019 |
| Achromatopsia (no color) | #6F6F6F | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287C6C
#287C6C
oklch(53.2% 0.084 177.7)
- #93576C
#93576C
oklch(53.1% 0.083 357.9)
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 #287C6C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.026
- Teal #008080 ΔE 0.030
- Dark Aquamarine #017371 ΔE 0.037
- Deep Aqua #08787F ΔE 0.037
- Deep Turquoise #017374 ΔE 0.039
- Dark Cyan #008B8B ΔE 0.054
- Ocean #017B92 ΔE 0.062
- Sea Green #2E8B57 ΔE 0.064
Use #287C6C 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.