#287F61
Closest named color: Sea Green (#2E8B57). oklch(53.7% 0.095 166.2), rgb(40, 127, 97).
Aa
White text reads best on this color (4.88:1).
About this color
#287F61 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.095 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.045 away. White text reads best on it, at 4.88:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.29:1 |
| White text | 4.88:1 |
Values
| HEX | #287F61 |
| RGB | rgb(40, 127, 97) |
| HSL | hsl(159, 52%, 33%) |
| OKLCH | oklch(53.7% 0.095 166.2) |
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 #287F61 | 4.88:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #287F61 | 4.29:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #287F61 text on white | 4.88:1 | AA | Lc 73.6 | Content text, not long reading |
| #287F61 text on black | 4.29:1 | AA large text | Lc -28.1 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE8
oklch(93.7% 0.013 164.8)
-
Step 200
200
#CBDED5
oklch(88.4% 0.024 165.8)
-
Step 300
300
#A7CABA
oklch(80.9% 0.044 165.9)
-
Step 400
400
#77AF97
oklch(70.8% 0.069 165.9)
-
Step 500
500
#509A7D
oklch(63% 0.087 166.1)
-
Step 600
600 (this color)
#287F61
oklch(53.7% 0.095 166.2)
-
Step 700
700
#207055
oklch(49% 0.088 166.3)
-
Step 800
800
#1E5C46
oklch(42.8% 0.073 166.1)
-
Step 900
900
#1F4B3B
oklch(37.6% 0.057 167)
-
Step 950
950
#132C22
oklch(26.9% 0.037 165.7)
#287F61 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) | #7C765F | 0.094 |
| Deuteranopia (no green cones) | #706D63 | 0.092 |
| Tritanopia (no blue cones) | #007F77 | 0.034 |
| Achromatopsia (no color) | #717171 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287F61
#287F61
oklch(53.7% 0.095 166.2)
- #955679
#955679
oklch(53.7% 0.095 346.3)
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 #287F61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.045
- Bluegreen #017A79 ΔE 0.046
- Teal #008080 ΔE 0.047
- Jungle Green #048243 ΔE 0.050
- Dark Sage #598556 ΔE 0.052
- Viridian #1E9167 ΔE 0.054
- Dark Aquamarine #017371 ΔE 0.055
- Deep Turquoise #017374 ΔE 0.058
Use #287F61 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.