#287C5E
Closest named color: Bluegreen (#017A79). oklch(52.8% 0.094 165.5), rgb(40, 124, 94).
Aa
White text reads best on this color (5.07:1).
About this color
#287C5E is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.094 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.045 away. White text reads best on it, at 5.07:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.13:1 |
| White text | 5.07:1 |
Values
| HEX | #287C5E |
| RGB | rgb(40, 124, 94) |
| HSL | hsl(159, 51%, 32%) |
| OKLCH | oklch(52.8% 0.094 165.5) |
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 #287C5E | 5.07:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #287C5E | 4.13:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #287C5E text on white | 5.07:1 | AA | Lc 74.8 | Content text, not long reading |
| #287C5E text on black | 4.13:1 | AA large text | Lc -26.9 | 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
#CCDED5
oklch(88.5% 0.023 164.5)
-
Step 300
300
#A8CABA
oklch(81% 0.043 165.2)
-
Step 400
400
#78AE97
oklch(70.6% 0.066 166.1)
-
Step 500
500
#529A7D
oklch(63.1% 0.086 165.6)
-
Step 600
600 (this color)
#287C5E
oklch(52.8% 0.094 165.5)
-
Step 700
700
#237055
oklch(49.1% 0.087 165.9)
-
Step 800
800
#205B45
oklch(42.6% 0.072 165.3)
-
Step 900
900
#204B3A
oklch(37.7% 0.057 165.2)
-
Step 950
950
#142C22
oklch(27% 0.036 165)
#287C5E 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) | #79735C | 0.092 |
| Deuteranopia (no green cones) | #6E6B60 | 0.089 |
| Tritanopia (no blue cones) | #007C74 | 0.035 |
| Achromatopsia (no color) | #6E6E6E | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287C5E
#287C5E
oklch(52.8% 0.094 165.5)
- #915477
#915477
oklch(52.7% 0.093 345.3)
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 #287C5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.045
- Teal #008080 ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.050
- Jungle Green #048243 ΔE 0.051
- Sea Green #2E8B57 ΔE 0.052
- Deep Turquoise #017374 ΔE 0.053
- Dark Sage #598556 ΔE 0.057
- Deep Aqua #08787F ΔE 0.057
Use #287C5E 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.