#287E51
Closest named color: Jungle Green (#048243). oklch(53% 0.108 156.4), rgb(40, 126, 81).
Aa
White text reads best on this color (5.00:1).
About this color
#287E51 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.108 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.030 away. White text reads best on it, at 5.00:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #287E51 |
| RGB | rgb(40, 126, 81) |
| HSL | hsl(149, 52%, 33%) |
| OKLCH | oklch(53% 0.108 156.4) |
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 #287E51 | 5.00:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #287E51 | 4.19:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #287E51 text on white | 5.00:1 | AA | Lc 74.3 | Content text, not long reading |
| #287E51 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CCDFD2
oklch(88.6% 0.027 155.9)
-
Step 300
300
#A8CBB4
oklch(81% 0.049 156.3)
-
Step 400
400
#78B08D
oklch(70.8% 0.078 156.4)
-
Step 500
500
#519C70
oklch(63.2% 0.101 156.2)
-
Step 600
600 (this color)
#287E51
oklch(53% 0.108 156.4)
-
Step 700
700
#237148
oklch(49% 0.1 156.3)
-
Step 800
800
#1F5C3C
oklch(42.6% 0.083 157)
-
Step 900
900
#204C33
oklch(37.8% 0.065 156.4)
-
Step 950
950
#142C1E
oklch(26.9% 0.04 156.7)
#287E51 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) | #7D744E | 0.098 |
| Deuteranopia (no green cones) | #726C54 | 0.096 |
| Tritanopia (no blue cones) | #007D72 | 0.051 |
| Achromatopsia (no color) | #6F6F6F | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287E51
#287E51
oklch(53% 0.108 156.4)
- #925283
#925283
oklch(53% 0.107 336.3)
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 #287E51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.030
- Sea Green #2E8B57 ΔE 0.040
- Dark Sage #598556 ΔE 0.053
- Viridian #1E9167 ΔE 0.057
- Tree Green #2A7E19 ΔE 0.060
- Military Green #667C3E ΔE 0.061
- Muddy Green #657432 ΔE 0.064
- Dark Olive Green #556B2F ΔE 0.065
Use #287E51 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.